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Excalibur Mineral / Tony Nikischer

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Frank de Wit:

CLINOPTILOLITE-Ca- Succor Creek, Malheur Co., Oregon
Small transparent crystals of this interesting species to 1.5mm very richly scattered in opened, geode-like thunderegg balls, occasionally with minor white mordenite. Old material collected in the 1960's with good micro potential, these are sodium dominant in the interior od the crystals, and calcium dominant at their exteriors. Rich specimens, sizes from about 2cm to 5cm @ 20.00, 35.00 and 45.00 each.

CLINOTYROLITE- Lovelock Mi, Bolivia, Churchill Co. Nevada
This uncommon mineral occurs here as micro pale blue to blue-green acicular crystals and sprays perched on matrix. Old material, XRD-confirmed, from one of several localities we have in stock. These are the best of the bunch and will all yield excellent micromounts from colorful TNs and miniatures as well. Associations can include tiny azurites, brochantite and many other potential secondary minerals. Only a few samples on hand, sizes range from about 2cm up to rich 6cm specimens @ 15.00, 25.00, 40.00 and 55.00 each, these at less than half the price of 20 years ago!

DRAVITE- Guadalupana Mine, Cerro de Chevito, Mexico
From a crate packed in the 1980s, a fine selection of analytically confirmed dravite specimens, typically as black
sheaves and striated crystals fully covering matrix. Often mis-identified as schorl because of its color, our EDS work (copy supplied with each sample) shows this Sonoran material to be consistently Mg-dominant, and hence, dravite, not schorl. Attractive, lustrous specimens from about 4cm to 12cm across @ 30.00, 55.00, 85.00 and 150.00 each; one monster 18cm specimen @ 300.00. List alternates, please!

EPSOMITE- Calatayud, Zaragoza, Spain
Massive aggregates of powdery white epsomite, here as relatively pure masses carefully filling a 4+cm stoppered glass vial. Obtained more than 20 years ago, the material is likely from the Arcilla Cave, interesting stuff and rarely offered from an excellent locality at just 15.00 per vial.

FLEISCHERITE- Tsumeb, Namibia
Minute glassy pinkish needle-like splintery crystals without matrix. A rare species from this prolific, type locality, a few tiny, pinkish-white, glassy fibrous crystals in a capsule @ just 25.00.

HEMATITE- Izenhood Ranch area, Lander Co., Nevada
Interesting thumbnails of steely-black botryoids with little or no matrix, all comprised of densely intergrown, platy micro crystals of splendant hematite. Unusual locality material with both TN and micro display potential, only a few available @ just 8.50 each.

HEMIMORPHITE- 79 Mine, nr. Hayden, Gila Co., Arizona
From a small lot recently uncovered in our warehouse: excellent, pale blue to bluish-grey botryoids of globular hemimorphite richly scattered on gossan matrix. These were collected on the third level of this famous mine in January, 1973, and they represent some of the finest of their type from this prolific Arizona locality. Moderately attractive specimens, impossible to obtain today, sizes from TNs to nearly 7cm across @ just 10.00, 20.00, 35.00 and 50.00 each, depending on quality and size from a 40 year old stash!

LAZULITE- 6mi NW of Jacksonville, Jackson Co. Oregon
Old material collected in the 1950s at the headwaters of Galls Creek and Jackson Creek, about 6 miles NW of Jacksonville, our location is significantly more precise than previously listed elsewhere! The specimens show rich pods of deep blue lazulite masses well scattered in granular quartz matrix, along with bladed muscovite and trace sulfides. Specimens range in size from flattened 3.5cm specimens to hefty 7cm chunky samples @ just 10.00, 20.00 and 35.00, with a couple of the largest & richest @ 45.00 each.

MENEGHINITE- Kalkar Quarry, Santa Cruz Co., California
Large areas of grey metallic meneghinite, often showing cleavage faces, running through a coarse limestone matrix in these hefty specimens from the classic U.S. locality. Considerably richer than those from Washington and elsewhere, sizes from about 3cm to 6cm @ 20.00, 30.00 and 45.00 each.

MESOLITE- Drain, Douglas Co., Oregon
Minute, thin colorless mesolite needles richly scattered in vugs, often with coarsely bladed thomsonite crystals and underlaying the mesolite in fine grained volcanic rock. Good micro material from an old locality, these collected in the late 1960's, specimens from 2cm to nearly 5cm across @ 8.50, 15.00 and 30.00 each. Nice!

METANOVACEKITE in GYPSUM- Mina las Animas, Santa Eulalia, Chihuahua, Mexico
From a lot of material unseen for more than 50 years, we have a few flats of this recently EDS-confirmed autunite group mineral, here as minute tabular crystal plates and masses scattered in white to greyish frothy gypsum specimens and imparting a wonderful, bright green (both SW & LW, better SW) fluorescence to the specimens. Based on opacity of the few exposed crystals, we assume these are water-depleted novacekite, hence, the metanovacekite designation. Moderately attractive samples from the "Wet Camp" area of the mine, collected in 1961-1963, sizes about 3cm up to 10cm across @ 10.00, 20.00, 35.00, 50.00 and 65.00 each, with analysis!

MEYERHOFFERITE pseudo INYOITE- Corkscrew Canyon, Death Valley, California
Chalky white, somewhat silky aggregates of meyerhofferite richly scattered over glassy primary meyerhofferite crystals or more commonly as pseudomorphs after inyoite crystals comprising matrix. Old, classic material, sizes from 1cm to 5cm across @ 7.50, 15.00, 25.00 and 45.00 each. Quite good for the species!

MICROCLINE var: AMAZONITE- Morefiled Mine, Amelia, Virginia
From an old hoard of material collected in the 1960s by Ted Morley, we have a number of pale blue microcline specimens in chunky cleavages and crudely crystallized aggregates comprising matrix from this famous eastern U.S. locality. We consider this primarily as reference material, inexpensive specimens from 2.5cm to 6cm are on hand @ just 4.00, 8.50 and 15.00 each. Old stuff!

MIMETITE- 4th level, 79 Mine, nr. Hayden, Arizona
A nice selection of bright yellowish orange to pumpkin orange botryoidal skins of mimetite richly covering matrix, some with small tabular crystals of orange wulfenite as well. Old material collected over forty years ago, these are moderately attractive specimens, sizes ranging from 2cm to nearly 6cm across @ 10.00, 15.00, 25.00 and 40.00 depending on overall quality.

MONAZITE-(Ce) w/ MAGNETITE etc- Travancore, India
From a small bottle of monazite concentrates ex-E.W. Heinrich, we have several 4cm stopped glass vials filled with approximately 10g of these interesting concentrates. Under the scope, many highly magnetic, black octahedra of magnetite are evident, as well as a few (analyzed) Fe-oxide rectangular crystals (likely pseudomorphous), as well as minor quartz etc., all with pale pinkish-tan, rounded micro grains of monazite-(Ce). Our analysis of the monazite (copy supplied) shows Ce>La>Nd>Th phosphate, nearly identical to textbook Ce-end member. From an old and prolific alluvial deposit region in India, just 12.50 per 4cm glass vial.

PHARMAZINCITE (IMA 2014-015)- Tolbachik Volcano, Kamchatka, Russia
This NEW ARSENATE SPECIES was discovered at the Arsenatnaya fumerole of the Second Scoria Cone at Tolbachik, here as tiny but rich aggregates of colorless to white crystals individually mounted on 1cm disks. Formula: KZnAsO4 - hexagonal - IMA # 2014-015. The mineral is named for its chemical constituents (Greek: poison+zinc). Only a few available @ 125.00 each.

PIEMONTITE- Heddal, Telemark, Norway
Finely disseminated masses of rich pink piemontite well scattered in quartz matrix. Ex-Claus Hedegaard material from a rarely offered locality, specimen sizes from about 3cm up to large 10cm pieces @ just 7.50, 15.00, 25.00 and 40.00 each.

PLANERITE- Mauldin Mt., Montgomery Co., Arkansas
A rarer member of the turquiose group, planerite occurs as green botyroids nearly completely covering one side of a cherty matrix. Passably attractive as cabinet specimens and potential micro material as well. In sizes from 3.5cm to 8cm @ 30.00, 55.00, and 75.00 each.

POSNJAKITE- Ives Mine, nr. Eastman, Quebec, Canada
Pale blue masses of posnjakite nicely scattered over rock matrix, here from an excellent older locality. Moderately rich coverage for this uncommon mineral, specimens from about 2.5cm to 5cm across @ just 15.00, 25.00 and 45.00 each.

QUARTZ etc.- Panasqueira, Castelo Branco, Portugal
From an old lot recently uncovered, we have a small selection of singly terminated quartz crystals without matrix from this famous locality. Many have small druses of white, rhombic calcites and occasional trace sulfides as weel, interesting for the locality and collected many years ago. The crystals range from about 3cm to 6cm tall, priced according to size and quality at 10.00, 20.00, 40.00 and 50.00 each.

ROSICKYITE- Pacific Coast, Ventura Co., California
Sharp, yellow transparent micro crystals of rosickyite richly scattered over the surface of a brown shale matrix. Old stuff and good micro material as well, these from a drill core extracted off the coast of Ventura County in the Pacific Ocean. Sizes from 1.5 to nearly 3cm @ 10.00, 15.00 and 25.00 each. One larger 4x2.5cm specimen @ 40.00.

SINCOSITE- S. Rasmussen Ridge Mine, Caribou Co. Idaho
Small tabular micro crystals of dark green sincosite well-scattered in exposed seams in dark, V-rich mudstone matrix. An uncommon locality for the species, better known from South Dakota (which we also have in stock), but these appearing considerably darker than the Ross-Hannibal material. Only a few TN specimens on hand, all with excellent micro potential, @ just 30.00 each.

STANNITE- Redruth, Cornwall, England
Old specimens from the Michigan Mining College collection, most likely circa 1900. These are rich, massive specimens of grey, metallic stannite from the classic locality for the species, most admixed with arsenopyrite and other sulfide minerals but richly comprising a solid, metallic matrix. Our confirming EDS analysis is included with each specimen, only a few on hand, sizes ranging from about 2.5cm to nearly 6cm across @ 20.00, 35.00, 50.00 and 85.00 each.

STILBITE-Ca with ALBITE- Summit, Union Co., New Jersey
An older specimen comprised of many hundreds of white to pale orange-brown, iron-stained sheaves of radiating stilbite richly covering matrix, associated with small crystalline aggregates of similarly colored albite. Ex-Wallings Collection, hefty size, rather flat specimen about 22x10cm (!!) at just 95.00. One only!

TALC- Huntley Mine, Lodi District, Nye Co. Nevada
Slick, pearly white, greasy masses of richly scattered talc largely comprising these interesting locality specimens. Smaller samples are relatively pure, while the larger ones often have minor altered feldspar matrix associated. Specimens range from about 2.5cm to 7cm across @ 8.50, 15.00 and 30.00 each. Slippery stuff & obscure locality!

TALNAKHITE- Oktyabr Mi,Talnakh, Norilsk,Siberia, Russia
Ore samples of this rare mineral, here as intergrowths in pentlandite/ chalcopyrite matrix obtained from a Russian museum. Specimens range from about 1cm to nearly 3cm across, offered at just 75.00, 100.00 and 150.00 each, the latter in polished ore sections. List alternates!

TELLURIUM- Golden Cycle Mine, Teller Co., Colorado
Excellent, single bladed crystals and lightly intergrown groups of tellurium without matrix, each carefully packaged in a clear-topped, cotton-filled plastic box to best display habit and bright metallic luster. From this Cripple Creek District locality about 20 miles from Colorado Springs, these average about 5mm long @ just 15.00 each. Old stuff!

VESZELYITE- Black Pine Mine, Granite Co., Montana
Choice, deep greenish blue crystalline aggregates and tabular micro crystals of this uncommon species nicely perched on quartz-rich matrix, occasionally with chrysocolla other secondary minerals. Attractive micros for the species and easily visible without magnification, these are hand-selected from a large, old hoard, overall sizes from 2cm to 6cm @ 15.00, 25.00, 40.00, 55.00 and 75.00 each, depending on size, coverage and quality.

VOLBORTHITE- Gold Quarry Mine, Eureka Co., Nevada
Bright yellow-green balls and tiny aggregates of micro volborthite scattered over matrix and in seams, occasionally with other secondary copper minerals, most typically with azurite. Small but colorfully attractive specimens under the scope, matrix sizes from 1.5cm to 3cm @ 12.50, 20.00 and 35.00 each.

WICKENBURGITE- Potter-Kramer Claim, Wickenburg, Arizona From this Maricopa Co. haven for rare lead minerals, wickenburgite occurs as pink to orange fluorescent whitish masses in rock, with a few small microcrystals possibly present. Mimetite and phoenicochroite may also be associated as well, and this is relatively rich, old material. Sizes from about 2.5cm to nearly 6cm @ only 10.00, 20.00, and 35.00 each.

ZINCOMENITE (IMA 2014-014)- Tolbachik Volcano, Kamchatka, Russia
This NEW SELENIUM SPECIES was found in the Northern fumerole field of the First Scoria Cone at Tolbachik, here as minute, colorless, tabular to prismatic crystals and aggregates on matrix. Formula: ZnSeO3 - orthorhombic - IMA #2014-014. The species is named (Greek) for its chemical composition. Only a few 0.7cm matrix specimens on hand @ 145.00 each. List alternates!

ZIRCON- Buckwheat Dump, Franklin, Sussex Co. New Jersey
A miniature from old A.E. Seaman Museum stock (donated specimen RTC No. 163), comprised of many tiny zircons scattered in a quartz/microcline matrix. Two areas show larger, partially exposed (4mm) brown tetragonal dipyramids protruding from the matrix. Fluorescence is dull, somewhat yellowish orange, and not spectacular. The piece measures about 6x4cm @ 60.00. One only!


MICROMOUNTING- by Quintin Wight
This classy hardcover work, fully titled as "The Complete Book of Micromounting", has over 280 pages of detailed information dealing with the many diverse factors of mineral collecting at the microscopic level. Chapters cover the history of micromineral studies, trading and field collecting methods, specimen preparation, identification, various mounting techniques, microscopes, photography, a wide range of useful tools and more! Included are 165 color photographs (alphabetically arranged) of superb micro specimens as well. If you have contemplated micromounting, this is the bible to follow! Large format (28x21cm), hardbound with dustcover, new shrink-wrapped copies at just 39.00 each plus shipping. The book is now out of print, and this is the last of our stock!


We have a few small lots of faceted diamonds, all princess cut squares offered as a collection of four different colored stones, including white, yellow, green and blue! These are good commercial grade diamonds averaging about 1-1.5mm each and handsomely presented in glass-topped, 4cm white display boxes @ just 75.00 per set. Limit two sets per customer, please! If you have ever wanted a reference set of faceted diamond colors, this is it! As in most commercial goods these days, we suspect the fancy colors are treated natural diamonds!

Frank de Wit:

CATALOG 21408 - Vol. XLI, No. 8

All specimens offered on a first-come first-served basis, FOB our warehouse.

ANORTHOCLASE- Mt. Erebus, Ross Island, Antarctica
Strange, elongated crystals of anorthoclase without matrix, some showing modest twinning, here from a well-documented and sought-after locality for this feldspar-group mineral. These are from an old stash collected circa 1960, and only a few are available, sizes from about 2.5cm to 4cm tall @ 20.00, 30.00 and 40.00 each. depending on quality and size.

APJOHNITE- Brunita, La Union, Murcia, Spain
This uncommon member of the halotrichite group occurs here as minutely fibrous, tiny needle like crystals lightly scattered over buff to white colored clay-like matrix. Modest micro potential on these interesting specimens, average size about 3cm across at just 20.00 each.

AUGITE in SHONKINITE- Shonkin Sag, Chouteau Co., Montana
Perhaps the ugliest specimens one could own, augite occurs here as small black aggregates scattered in dark greyish shonkinite matrix, the locality being the petrologists' type locality for the rock type shonkinite. Material originally acquired circa 1974 and likely collected decades before. A few specimens on hand, sizes from about 3cm to 8cm across @ just 10.00, 20.00 and 35.00 each.

BARYTOCALCITE- Blagill Mine, Alston Moor, Cumbria, England
An uncommon mineral from the type locality for the species, barytocalcite occurs here as small bladed aggregates and masses scattered in matrix, potentiallyy with other species such as witherite, galena etc. The mineral fluoresces a please red color under both SW and (lesser) LW UV. Specmens from about 2cm to 6cm across @ 15.00, 25.00 and 45.00 each. Old material!

BRACCOITE (IMA 2013-093)- Valletta Mine, Cuneo, Piemonte, Italy
This relatively NEW SPECIES occurs as dark orange, microcrystallien aggregates well scattered on one surface of
Mn-rich ore matrix. Formula: NaMn2+5[Si5As5+O17(OH)](OH) - triclinic, IMA #2013-093, the As-analog of saneroite. Type locality material, analyses confirmed by EDS, PXRD, RAMAN and WDS methods, only a few thumbnail specmens on hand @ 85.00 each. List alternates!

CHALCOPYRITE, SPHALERITE etc.- Zenith Mine, nr. Schreiber, Ontario, Canada
Large masses of brassy, metallic chalcopyrite shot through dark, sphalerite matrix, some specimens with apparent pyrrhotite and likely other sulfides as well, all without discernable rock matrix. This Pays Plat Lake area locality was active from the late 1800s, with the original ore body exhausted in 1970. Rarely offered ore samples, sizes from about 5cm to10cm @ 15.00, 30.00 and 55.00 each. Heavy!!

CLAY CONCRETIONS- Fox Creek, Schoharie Co., New York
Weird, carbonate-rich clay concretions with a wide array of shapes, ranging from buttons to flying saucers, with other strange forms as well. Recently featured in Mineral News (Vol. 30, No. 9), we have a diverse selection of these oddities and can offer a collection of 7 specimens for the small lot price of just 25.00 per collection, specimens from 2cm to 5cm across in each lot, plus shipping.

CURETONITE- nr. Golconda, Humboldt Co., Nevada
Minute, pale green masses and aggregates of this rare, one-locality species very sparsely scattered on matrix, some intergrown with white barite. From the original find by Forrest Cureton, matrix sizes from 1.5cm to 6cm @ 25.00, 40.00, 65.00 and 85.00 each. The last of the stock!

DACHIARDITE-Ca with MORDENITE- nr. Cape Lookout, Tillamook Co., Oregon
Clear to white micro crystals of dachiardite-Ca scattered in vuggy basalt matrix, most associated with white, somewhat porcelanous mordenite balls, potentially with clinoptilolite-(Ca) as well. Good micro material from a well-documented find of more than 35 years ago, matrix sizes from 2cm to 6cm @ 10.00, 15.00, 25.00 and 40.00 each.

DEVILLINE- near Arivaca, Pima County, Arizona
Rather non-descript, pale blue masses of devilline scattered over a heavy rock matrix, most with pods of altered galena and possibly other minerals. Locality reference material, potentially worth breaking down to find other weird species. Old Cureton specimens from 2.5cm to 8cm @ 8.00, 15.00, 30.00 and 55.00 each.

DONPEACORITE- ZCA #4 Mine, Balmat, New York
This Mn member of the pyroxene group, one of the more uncommon orthopyroxenes, occurs as orange-red crystalline nearly pure aggregates, associated with dark brown braunite and possibly spots of fluorescent turneaurite. This St. Lawrence Co. locality is the first for donpeacorite, in sizes from 2cm to 7cm @ 15.00, 25.00, 40.00, 60.00, and 75.00 each. Reasonably colorful material!

FAHLEITE- Tsumeb, Namibia
Tiny masses of pale green fahleite without matrix. This extremely rare species is missing from most reference collections and has been chemically analyzed and XRD-confirmed. Only a few 1mm fragments are available @ 75.00 each; one 2.5mm sample @ 125.00, and one larger 4mm specimen is 275.00. Please list alternates!

FLUORITE on QUARTZ etc.- Sweet Home Mine, nr. Alma, Colorado
During the initial Sweet Home rhodochrosite rage, we purchased a great deal of material from the mine, much of it sulfides and other under-appreciated specimens. We recently uncovered a few small fluorite specimens, each showing a small cube (to 5mm) of pale blue to purple color, invariably perched on elongated quartz needles overlaying sulfides. While not spectacular as far as fluorites go, these are moderately attractive association pieces from a famous locality. Overall sizes are in the 3cm to 4cm range at just 20.00 each. Nice!

HEMIMORPHITE- Downeyville Lead Mine, Nye Co., Nevada
Excellent, water-clear micro sprays and sheaves of radiating hemimorphite on limonitic matrix. Attractive material with good coverage and fine micro potential, these show excellent terminations, with matrix sizes ranging from about 2cm to nearly 4cm @ 7.50, 10.00 and 15.00, depending on quality and size.

MAGNETITE- Lyon Mountain, Clinton Co., New York
An old specimen comprised of crudely aggregated magnetite richly scattered in a pale pinkish carbonate matrix. The specimen is ex-Edwin J. Collins, (1875-1956), a Vice President of the famous Calument and Arizona Mining Company that was organized in 1901 and later merged with Phelps Dodge in 1931. From a relatively uncommon locality, the piece measures about 7x5cm is just 40.00 with prior label.

ORPIMENT in KURNAKOVITE- U.S. Borax Mine, Boron, Kern Co., California
Tiny, pale yellow micro aggregates of orpiment very sparsely scattered and frozen in transparent cleavages of kurnakovite. Some magnification will be needed on this very uncommon assemblage, and all specimens have arrows to help pinpoint this very strange association. Only a few specimens found in a large lot of material, overall sizes range from about 3cm to 6cm across @ 20.00, 35.00 and 50.00 for the largest.

ORTHOCLASE- Rostrenen, Brittany, France
Elongated and somewhat flattened twinned crystals of tan orthoclase without matrix. Quite large for this interesting and old locality, specimen sizes from 3cm to 5.5cm long and about half as wide @ 25.00, 35.00 and 45.00 each. Excellent and quite sharp, old BRGM material from Dr.Paul Sainfeld!

PABSTITE- Kal-Kar Quarry, Santa Cruz Co., California
Greyish white, sparsely disseminated pabstite occurring as either poorly crystalline contact material or as isolated grains scattered in rock. A rare but lean fluorescent (blue-white, SW) mineral from the classic locality, sizes from 1.5cm to 5cm @ 10.00, 15.00, 25.00 and 40.00 each.

PUSHCHAROVSKITE- Salsigne Gold Mine, Aude, France
This uncommon copper arsenate, formula: Cu(AsO3OH)-H2O, triclinic, occurs as richly distributed, pale bluish-green masses and coatings on an altering bismuth matrix, most associated with other copper arsenates. Moderately attractive for an uncommon species, sizes from 1cm to 2.8cm @ 35.00, 60.00, and 75.00.

PYRARGYRITE w/ GALENA etc.- Highland Bell Mine, B.C., Canada
From an old stock, we have several relatively large chunks of silver-lead ore, consisting primarily of massive galena in rock, typically with minor pyrite and a host of unattractive, massive silver minerals. Probe work shows pyrargyrite to be quite prolific but largely unimpressive in small scattered and disseminated masses, and the locality has produced much acanthite, sternbergite, freibergite and other silver-rich species as well. Only a few ore specimens on hand, sizes from 5cm @ 35.00, 10cm @ 75.00. Heavy!

PYROMORPHITE- Caldbeck Fells, Cumbria, England
A small lot from old stock, these consist of very small, bright green drusy pyromorphite needles nicely scattered over matrix and in seams from this prolific area. Matrix sizes from 2.5 to 8cm @ just 15.00, 25.00, and 45.00 each, most with micro potential as well.

QUARTZ over CHRYSOCOLLA- Ray Mine, Pinal Co., Arizona
While it is impossible to guess how and why this material has been priced up to $1000 a specimen by some, it is, indeed, attractive old material! These are transparent, drusy quartz crystals lining seams and cavities of massive, charming blue chrysocolla matrix, resulting in much sought-after specimen and lapidary material. We uncovered a small flat here in the warehouse, likely 1970s vintage, with pretty specimens ranging from about 2.5cm to nearly 5cm across @ 10.00, 20.00 and 35.00 each.

RHODONITE- Gambatesa Mine, Genova, Liguria, Italy
Pink, wedge-shaped micro crystals and druses of pleasing rhodonite are well scattered on these matrix specimens, obtained some 25 years ago and just recently uncovered. A few may show tiny, very pale pinkish balls of rhodochrosite. The locality has produced over 130 different species, and trimming these may disclose other species as well. Only a few on hand, sizes average about 5cm @ just 25.00 each.

SARKINITE on WILLEMITE- Sterling Mine, Ogdensburg, New Jersey
Micro drusy brown sarkinite crystals very sparsely scattered on rich, brilliantly fluorescent red willemite ore matrix, some associated with minor green cuprian adamite and possibly other species. From the 1400' level find some years ago, some with good micro potential, matrix sizes from 3cm to 6cm @ 15.00, 25.00, 40.00 and 55.00 each

SHILOVITE (IMA 2014-016)- Pabellon de Pica, Iquique, Tarapaca, Chile
This NEW COPPER SPECIES occurs as pale blue masses lightly scattered in glassy, transparent halite, occasionally with other copper-rich phases. Formula: Cu(NH3)4(NO3)2 - orthorhombic, IMA #2014-016. This unique bat-guano locality has produced a number of new species because of its unusual environment! Fairly colorful and attractive stuff, author's material, only a few TNs available @ 195.00 each. Nice!

SILICOCARNOTITE (IMA 2013-139)- Hatrurim Basin, Negev Desert, Israel
This NEW SILICO-PHOSPHATE SPECIES occurs as minute inclusions within a complex gehlenite-wollastonite matrix, occasionally with other accessory minerals. The precise locality is at Har-Parsa Mountain between Arad and the Dead Sea in the Negev Desert. Formula: Ca5[(PO4)(SiO40](PO4) - orthorhombic, IMA #2013-139. Related structurally to the carnotite group, but it lacks UO2 and VO4 found in other members of the group. Each 1+cm sample is provided in as a polished section and is accompanied by one color image plus two b/w SEM images pinpointing the species, along with full anlaytical microprobe data. Author's material, only a few available @ 225.00.

WERNERKRAUSEITE (IMA 2014-008)- Casper Quarry,Ettringen, Mayen,Eifel German
This NEW SPECIES occurs as microscopic inclusions in a etttringite-taumasite matrix, typically with other minor constituents, in a complex intergrown assemblage. The locality is at the Bellerberg Volcano and lies within the prolific Eifel complex in the Rheinland-Palatinate. Formula: Ca(Fe3+, Mn3+)Mn4+O6 - orthorhombic, IMA #2014-008. Each 5mm sample is in a 1.5cm probe mount and is accompanied by its analytical probe data and at least one pinpointing SEM image. Author's material, elegantly documented, only a couple available @ 295.00 each.

WHELANITE- Old Hickory Mine, Beaver Co., Utah
From the type locality for this approved and now (finally) officially published species, we have a small selection of specimens from the original find, here occurring as pale blue powdery druses and sprays scattered on matrix. Sizes range from 1.5cm to nearly 5cm @ 15.00, 25.00 and 45.00 each.

WOLLASTONITE- Gold Hill, Tooele Co., Utah
Everyone has wollastonite; few have it from Gold Hill! Largely ignored by collectors and dealers because of the many colorful secondary minerals found at this prolific locality, the wollastonite specimens from here are surprisingly rich, displaying nearly pure, white divergent crystalline aggregates throughout! Sizes are generous at 4cm to 10cm across at just 7.50, 15.00, 25.00 and 40.00 each. Be the first on your block to own one of the few rock-forming minerals from this 100+species locality!

XENOTIME-(Y)- Beryl Hill, nr. Yinnietharra Sta., Australia
A departure from the usual for this mineral, we have a single specimen of blocky rusty brown, crude xenotime crystals without matrix. Not attractive, but the individual crystals are from 1.2cm up to 1.8 cm in length. Old stuff, only a few on hand @ 30.00 and 45.00 each.


This is a two-volume softcover set written in Czech by Petr Paulis, Stanislav Kopecky and Pavel Cerny that describes the uranium minerals of the Czech Republic as well as the localities in which they are found. There is extensive detail with individual mine diagrams of underground workings and ore body maps, as well as and black/white images of mining buildings, headframes, mill sites and specimens. The two volumes total just over 250 pages and are fully indexed with an extensive bibliography. Color softcover wraps, 21x14cm format, only a few sets avialble @ 59.00 per set, FOB our warehouse. Note: Czech language only!

FRANKLIN & STERLING HILL- -World's Greatest Mineral Deposit by Dr. Pete Dunn
The last of our stock, exclusively from the author: the revised HARDCOVER edition of Dr. Dunn's monumental work on the Franklin and Sterling Hill deposits. Over 750 pages in two volumes, handsomely bound in royal blue buckram, oversewn, with acid-free endpapers and gold-stamped on spine and cover, this set is a comprehensive treatment of the mineralogy and history of this prolific and complex deposit! Over 900 b/w illustrations and photographs fill this careful, descriptive, precise work that meticulously documents the diverse mineralogy of this famous NJ locality. Every serious collector and bibliophile should own this set, and we are the exclusive distributor for this limited printing. The two volume set is 195.00 plus 16.00 s/h (USA); overseas customers: please inquire for shipping costs.


STILBITE - Various Localities Worldwide
We have large amounts of stilbite specimens from a wide range of localities. Most occur as pale greyish to pinkish to white radiating sprays and crystal groups on matrix, varying from 1cm to 3+cm tall, some pure, some with laumontite, calcite, apophyllite etc.. Specimen sizes will range from about 3cm to 7cm across, and we can assemble a variety of localities and/or associations in collections of 5 specimens @ 75.00 or 10 @ 125.00, and up! Many will have old collection labels as well, so enjoy these historic zeolites!


TOURMALINE- Minas Gerais, Brazil
A wonderful selection of deep green, fully transparent faceted tourmaline, these primarily in free-form elongated baguette shapes, varying in size from about 8x2mm to 12x4mm, weighing from about 0.5 carats to 1.3 carats each. We have assembled a few choice lots of 8 stones, averaging a little over 6 carats in total weight, at just 55.00 per lot - less than 10.00 per carat! A great bargain for Brazilian faceted tourmalines!


A full 16 pages every month, filled with interesting, collector-oriented articles about mineral localities, historical notes, mineral collecting and related discoveries. A full year's subscription (12 issues) is just 30.00 (USA), or 56.00 foreign. Just add the costs to your order from this catalog, and we'll do the rest. Specify what issue to begin your subscription (we suggest January for a full volume) or simply begin with the "current issue". Back issues and year sets are available, too! See the Mineral News website ( for more details. If you are already a subscriber, extend your current subscription for another year by simply adding 30.00 to your mineral order for "Mineral News Extension". Thank you!

CATALOG 21407 - Vol. XLI, No. 7

All specimens offered on a first-come first-served basis, FOB our warehouse.

APATITE var: COLLOPHANE- Achan Quarry, Plant City, Polk Co., Florida
Old material collected by famous geologist E.W. Heinrich and accompanied by a copy of his label. The material is tan to white, massive nodules, with Heinrich calling it "nodular phosphorite", an apatite variety generally found as impure, somewhat fibrous masses. His label notes from the Bone Valley formation within the Achan Quarry, and teh "collophane" variety is usually ascribed to carbonate-rich fluorapatite/hytdroxylapatite. Ugly stuff and neat reference material, specimens range from about 2cm to 4.5cm @ just 5.00, 10.00 and 20.00 each.

ARADITE (IMA# 2013-047)- nr. Arad, Negev Desert, Israel
This NEW SPECIES occurs as minute, white to colorless grains scattered in a brownish matrix of massive rankinite-schorlomite, with melilite, perovskite and minor wollastonite plus other species present. Formula for this unique silicate-vanadate-phosphate is generalized as BaCa6[(SiO4)(PO4)](VO4)2F, trigonal, IMA 2013-047. From the type locality in the Gurim Anticline, accompanied by a color image just three SEM images and full analytical chemistry. Author's material, a co-type specimen measuring 10x9mm in a 1.8cm polished probe mount, only one on hand @ 300.00. The sample is pictured in MinDat; list alternates!

BAKERITE- Corkscrew Canyon, Death Valley, California
Pure white porcelaneous masses of bakerite, one of the primary boron minerals from this region known for its borates and high day-time temperatures. Bakerite is a complex borate-silicate of the gadolinite group, and is offered as solid, chalky white chunks from 3cm to 6cm @ 15.00, 20.00, 30.00, and 45.00.

BANNISTERITE- Franklin Mine, Franklin, Sussex Co., New Jersey
Last offered about 20 years ago, we recently uncovered a small lot of bannisterite specimens, available as several tiny flakes of brown micaceous platelets contained in a capsule. These are from the type locality, of course, and we have just a few lots available @ 25.00 each. Ex-Cureton, XRD-confirmed. A few rich, larger samples to nearly 2cm from Broken Hill on hand @ 55.00 each.

BAYLDONITE- Tsumeb, Namibia
Small drusy crystals of micro green bayldonite lighthly scattered on matrix, these are XRD-confirmed specimens that were trimmed many years ago. Only a few small samples on hand, sizes from about 4mm to 9mm @ just 20.00, 30.00 and 45.00 each. Also on hand, ex-Cilen Collection, a TN sized sample with sparsely scattered micro druses on matrix, about 2.5cm @ 75.00. Also, an exceptionally large, very old specimen, ex-Wards Natural Science, comprised of micro reticulated bayldonite densely aggregated, comprising matrix, with thin seams of crystallized malachite and possibly other species on heavy Tsumeb ore matrix, size about 10x6x5cm @ 450.00.

BERTHIERITE- Kutna Hora, Czech Republic
From an old classic locality, we have a few representative specimens of this uncommon mineral, here as greyish metallic masses scattered in rock matrix. Not as attractive as Romanian material, but considerably less expensive, specimens ranging in size from 3.5cm to 6cm @ only 15.00, 25.00 and 40.00 each. Old stuff!

CALCITE- Banat (ex-Hungary), Caras-Severin, Romania
From our 1974 show inventory, a neat specimen comprised of numerous translucent rhombohedral calcite crystals to 1.2cm scattered on matrix. Banat has a diverse geographical past, ruled by Austria, Hungary, the Ottomans, Serbs etc. and now largely part of Romania. The piece is numbered and has our original Dover, NJ label and a small handwritten paper label. A classic locality and moderately old and unusual specimen, size about 7x6cm @ just 45.00.

CHUBAROVITE (IMA #2014-018)- Tolbachik Volcano, Kamchatka, Russia
This NEW SPECIES, one of many recently approved, occurs at the Arsenatnaya fumerole on the Second Scoria Cone of the Great Tolbachik Fissure Eruption. It forms minute, water-clear lamellar crystals and aggregates, often with white, acicular fluoborite hairs. Formula: KZn2(BO3)Cl2 - trigonal, IMA #2014-018. Named for Russian mineralogist and physicist Valeriy Mikhailovich Chubarov (b. 1948), a specialist in microprobe analysis. We have a few small (~1cm) matrix specimens with arrows and modest micro potential @ 175.00 each. List alternates!

Frank de Wit:
Now moved from New York, where they always always were... to ->
1885 Seminole Trail - Suite 202, Charlottesville, Virginia 22901-1160, USA

Frank de Wit:
Excalibur Mineral Corp.
Tony Nikischer /


1885 Seminole Trail - Suite 202, Charlottesville, Virginia 22901-1160, USA
1000 North Division Street, Peekskill, New York 10566

Also see his magazine,1814.0.html


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