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July 16, 2018, 12:11:31 PM

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1
Museums / Re: Belgium, Liege, Université de Liège
« Last post by Frank de Wit on Today at 08:41:31 AM »
Université de Liège
Laboratoire de Minéralogie
Musée de minéralogie / "Cesàro and Buttgenbach museum"
http://www.minera.ulg.ac.be/
https://www.campus.uliege.be/cms/c_9355528/fr/musees-de-l-uliege

La collection de plus de 20.000 minéraux, avec des échantillons historiques exceptionnels, et des minéraux de Belgique, est exposée sur deux sites : le Laboratoire de Minéralogie (Sart Tilman, accès sur RDV) et la Maison de la Science.

Allée du Six Août 6, B18 - Parking n°40, 4000 Liège, Belgium

Also see:
https://www.mineral-forum.com/message-board/viewtopic.php?p=62752#62752
2
Museums / Re: Germany, Niedersachsen, Feggendorfer Stollen
« Last post by Frank de Wit on July 15, 2018, 11:01:23 AM »
3
Shops/dealers / Re: Purple-Sky-Minerals / David Hospital
« Last post by David Hospital on July 14, 2018, 11:17:16 AM »
Hi lovers and passionates of systematic minerals,

The new auctions of systematic minerals are online at  E-rocks /Purple Sky Minerals

https://e-rocks.com/items/auction/1000735/purple-sky-minerals-11-jul-18-jul-2018


and also at the new Geo-trader /Purple Sky Minerals :

https://www.geo-trader.com/store/purple-sky-minerals


....so I highly recommend to have a look to both sites !

Good luck if you bid !

Thanks for your time.
David Hospital
Purple Sky Minerals
5
Mineral fairs/meetings / Re: Urretxu
« Last post by Frank de Wit on July 13, 2018, 04:25:23 PM »
Urretxu Salon de Minerales, Fosiles y Gemas
Mineral, Fosil eta Harribitxien Erakusketa
No website?

2-4 november 2018

Frontón Municipal Ederrena
Urretxu, Spain

Also see:
https://mineralesagus.blogspot.com/2018/07/xxxi-feria-de-minerales-y-fosiles-de.html
8
Shops/dealers / Re: Excalibur Mineral / Tony Nikischer
« Last post by Frank de Wit on July 12, 2018, 09:20:50 AM »
Excalibur Mineral Corporation
1885 Seminole Trail - Suite 202 - Charlottesville, VA 22901-1160
Tel: (434) 964-0875 Fax: (434) 964-1549
www.excaliburmineral.com
email: info@excaliburmineral.com

CATALOG 21804 – Volume XLV, No.4

Our 45th Year!


ALMANDINE etc.- Zillertal, North Tyrol, Tyrol, Austria
From the area near Pfitsch Pass, an old specimen comprised of fine-grained schistose/quartz matrix, shot through with scores of small dodecahedral crystals of almandine garnet,associated with inor hematite, clear albite, clinochlore etc. The piece is ex-Czech National Museum and is accompanied by their label, overall specimen size is about 7.5x4cm @ just 40.00. A good reference sample from this prolific area with some micro potential as well!

ANALCIME with CALCITE- Croft Quarry, Leicestershire, England
Rather well formed, transparent too translucent analcime crystals perched on matrix, all with small druses of white calcite, some showing secondary growth. Collected about 20 years ago from the quarry which sits near the small town of Enderby, only a few specimens available, sizes from 3cm to 6cm @ 15.00, 30.00 and 45.00 each, priced according to quality.

AUGITE with FRANKLINITE etc.- Franklin Mine, Franklin, Sussex Co., New Jersey
Flattened aggregates of dark augite richly scattered in and largely comprising matrix, here with minor franklinite, micro impregnating willemite and trace calcite as well, the latter two fluorescent, of course. This hefty specimen is ex-Dr. Pete J. Dunn Collection and is accompanied by his label, overall specimen size about 8x8cm @ 45.00. One only, with excellent provenance from the master researcher of this prolific locality!

AUSTINITE- Gold Hill, Tooele Co., Utah
From the depths of the warehouse, excellent vitreous micro crystals of austinite richly scattered in opened seams of limonitic matrix. Fine for the species, old material from this famous locality, many with superb micro potential as well. Matrix sizes from 2cm to 8cm across with corresponding coverage @ 7.50, 12.50, 20.00, 35.00 and 50.00 each. Nice!

BERTRANDITE in QUARTZ- Mt. Antero, Chaffee Co., Colorado
Old Wards Natural Science specimens comprised of densely aggregated quartz showing small, lustrous bertrandite crystals and aggregates sparsley scattered in exposed vugs in the quartz. A copy of the original label accompanies each specimen, the Dana number (422) on the label suggests the Sixth edition (1892) of Dana's System was used as the referenced source by Wards, providing perhaps a snapshot of when the material was acquired. Sizes average about 3cm across @ just 35.00 each. Old stuff!

BOYLEITE on BIANCHITE- Muzhievo, Beregovo, Transcarpathia, Ukraine
Two new minerals for the locality, here as elongated anthodites comprised of intergrown parallel aggregates of bianchite that have altered at their surface to white, columnar boyleite. Excellent for the species, from a new find at this locality that is near the Hungarian border. Specimens average 1.5-2cm @ 95.00 each. Only a few available!

CALCITE- nr. Black Rock Desert, Humboldt Co., Nevada
Excellent, well-formed and sharp, frosty white scalenohedral calcite crystals without matrix that are singly terminated, most showing a bluish-white SW UV fluorescence AND phosphorescence, plus a pale yellowish response to LW UV! The larger crystals show the better UV responses, crystal sizes from about 2.5cm to 5cm long @ only 7.50, 12.50 and 17.50 each. Neat!

CALCITE- Delta Carbonate Quarry, York, Pennsylvania
Collected about 25 years ago, the calcites from this quarry were often tinted orange by iron staining and inclusions, but this large display specimen shows numerous lenticular twinned crystals to 2cm across richly covering matrix, but with just a hint of color, resulting in a pleasing, large display piece that measures a hefty 19x12x10cm @ just 150.00. One only!

CELESTINE- Sakoany Deposit, Mahajanga Prov., Madagascar
Most collectors are familiar with the transparent, pale blue, chisel-shaped celestine crystals in geode-like vugs from this prolific locality. A small lot of excellent, steeply pyramidal crystals recently came to light, highly unusual in that they are sharply tapered and pointed, rather than the more common broad, squat crystals seen so often. Only three specimens retrieved from a very large lot, with pointed crystals up to 2.5cm long protruding from broad, geode-like vugs, with overall hand specimen sizes averaging about 8x6cm @ just 65.00 each. Don't miss these!

CRYPTOPHYLLITE- Tsentral'nyi Mine, Rasvumchoor, Khibiny, Russia
From the type locality for the species, these are from a relatively new find that was far superior to the original some ten years ago. In this instance, cryptophyllite occurs as tiny, colorless, elongated micro crystals and lath-like aggregates up to a couple of millimeters on pegmatitiic matrix. These are nearly 10 times larger than the first find of the mineral, and associations here include aegirine, sodlaite, K-feldspar, polymineralic pseudos after eudialyte and other potential species! Specimen sizes range from about 3cm to 5cm across, and these will offer some fine micros of a very rare, one-locality species @ 145.00 and 185.00 each, depending on quality.

DIAMOND (3.68 cts)- Argyle Mine, Western Australia, Australia
A rather large, flattened octahdral diamond crystal without matrix, showing lustrous faces and translucent, dark grey hue. Due to its rather flat presentation, the crystal looks quite large, measuring a full 10mm across and 6mm wide. A relatively modern locality known for its brightly colored pink diamonds and other unusual colors. One only, the stone weighs an impressive 3.68 carats @ only 395.00.

FLUORITE var: TIFFANY STONE- Bell Hill Mine, Spor Mtn., Juab Co., Utah
A very weird fluorite occurrence, here as pale purple, opaque masses as veins and interstitial fillings among chalcedony streamers staining tuff matrix, some showing a distinctive boxwork structure and often fluorescence due to the chalcedony and/or hyalite and possible calcite/dolomite associated in the matrix. Occasionally used as a striking lapidary material, this "Tiffany Stone" variety of fluorite is perhaps the strangest fluorite we have seen in
some time, these samples collected about 30 years ago. Specimens range from 3cm to 12cm (!!) across, all with odd forms, @ 7.50, 15.00, 30.00 and 50.00 each. You really need to have one of these!

GYPSUM "Desert Rose"- Sahara Desert, Ouargla Province, Algeria
These are interesting, well formed desert roses from an uncommon locality in the Sahara Desert, formed by interlocking tabular crystals of pale brown to redish gypsum to several centimeters across. Rather attractive and undamaged roses, supposedly from the area around Mnaguer (unverified), overall group sizes averaging 5cm to 6cm long @ just 15.00 each. Neat locality and pleasing to look at!

HAGGITE- Section 33 Mine, Grants, McKinley Co New Mexico
Among the ugliest of all minerals, haggite occurs as tiny, black monoclinic grains and aggregates scattered in sandstone matrix. One of the more obscure vanadium minerals, occasionally with trace, pale yellowish meta/tyuyamunite and/or minor pyrite. Old Cureton material, only two specimens on hand, sizes average about 4.5cm across @ 55.00 each. List alternates! Some South Dakota material also available; inquire!

HOLMQUISTITE- Foote Mine, Kings Mt, Cleveland Co., North Carolina
Representative samples of holmquistite in which aggregates of small bluish-black, micro prismatic crystals are flattened, providing a densely intergrown, fine-grained surface. Interesting specimens from old E. Wm. Heinrich material, famous professor of geology at the University of Michigan and editor of American Mineralogist. Specimens from about 4cm to 8m across @ 20.00, 35.00, and 55.00 each.

ILVAITE- Huanggang, Hexigten Banner, Mongolia, PR China
From the Chifeng Precture in Inner Mongolia, these are among the finest ilvaite crystals we have ever encountered! Singly terminated, elongated and lustrous prisms from 3.5cm to 4cm tall are just 45.00 each. We have a pair of finger-thick, DOUBLY TERMINATED rod-like crystals that are just over 8cm (!!!) tall, matrix free, and with wellformed, black prismatic habit! Each sample is very conservatively priced at just 200.00. In addition, we have two, thick and highly lustrous stout groups as well, these ranging from 6cm to 7cm tall, as much as 4+cm at the base, and comprised of two or more individuals that are intergrown and each wonderfully terminated at one end @ 350.00 each. Great specimens; list alternates!

JUNITOITE- Christmas Mine, Gila Co., Arizona
Nice, sharp platy microcrystals and thin crystalline plates of colorless to white junitoite are scattered over a skarn matrix. Possible associations include kinoite, ruizite, etc. named for crystallographer Jun Ito who worked with Dr. Paul Moore at the University of Chicago. Good coverage in these older specimens, ex-Cureton material, 3cm to 6.5cm @ 15.00, 25.00, 40.00 and 60.00 each.

KENTROLITE- Big Chief Mi, Hillsboro, Sierra Co. New Mexico
From one of the premier localities for the species, kentrolite occurs here as black, submetallic orthorhombic micro crystals, aggregates and globular, radiating groups scattered in seams and vugs on matrix, some of the better specimens associated with rare transparent, colorless, hexagonal vanadinite crystals as well! Excellent micro material, priced according to size, richness and associations, overall from 2.5cm to nearly 5cm across @ 15.00, 30.00 and 45.00 each.

KHRENOVITE (IMA #2017-105)- Arsenatnaya Fumerole, Tolbachik, Kamchatka, Russia
Another NEW SPECIES from the second scoria cone of this Kamchatka volcano, here as minute, honey-orange hued crystals without matrix, each sample carefully mounted on an adhesive disk. Formula: Na3Fe3+2(AsO4)3 - monoclinic, IMA # 2017-105. The mineral is named for Russian volcanologist Anatoly Petrovich Khrenov (1946-2016) who made significant contributions to the studies of the Kamchatka volcanoes. Exceptionally rare, only five crystals available @ 185.00 each; type locality material from the author, of course.

LAUMONTITE on FLUORAPOPHYLLITE-(K)- Prospect Park Quarry, Paterson, New Jersey
An old specimen comprised of an open void in basalt that exposes a small group of translucent fluorapophyllite-(K) crystals, the major one about 1.2cm across, with numerous, tiny prismatic crystals of pearly white laumontite scattered about the vug that measures about 3.5x2.5 on its surface. The locality is being completely backfilled and is no longer productive. The piece is ex-Upsala College and is accompanied by their label, overall size of the
specimen is 9x6cm @ just 35.00.

LAZURITE (Lapis Lazuli)- Koksha Valley, Badakhshan Province, Afghanistan
Much of the cutting material currently on the market has come from this region, and we recently uncovered a box of TN-sized specimens that were likely from an older cutting operation. These are relatively solid chunks of blue lazurite, unpolished, their color greatly improved from dull blue to brillaint blue when wet or polished. You can expect trace pyrite in some, white calcite in others, but no crystals are evident. Really affordable as 2cm to 2.5cm rough at just 6.00 each, or 5 for 25.00.

MACEDONITE- Langban, Varmland, Sweden
This moderately rare species occurs in two distinct habits: as minute, slightly greenish-yellow masses in celsianrich dump material, and as dark, nearly black rounded grains in andradite-rich ore. Not at all attractive and quite lean, but rarely offered from this prolific locality. Sizes range from 1cm to 2cm across @ 75.00 and 100.000 each.

MENDELEEVITE-(Ce)- Dara-i-Pioz, Tien Shan, Tadjikistan
This extremely rare occurs as minute, cubic interstitial fillings among a quartz/pectolite matrix, offered here as a tiny fragment mounted in a 2cm probe mount and elegantly documented with a large, backscatter SEM image and Xray spectra that are provided This moderately new cesium-dominant phases is IMA #2009-092, formula: Cs6(REE22Ca6)(Si70O175)(OH,F)14H2O21 - isometric, with cerium being the major REE after cesium. Only one documented specimen available @ 325.00.

NESQUEHONITE- Nesquihoning, Carbon Co., Pennsylvania
A superb specimen from the type locality for the species, rarely seen in today's market. The piece shows greyish white to beige upright crystal sheaves radiaiting from a small coal matrix, with small, dull white masses of what is likely lansfordite, the other type locality species found here. The specimen is ex-University of Arizona, originally from the Rukin Jelks Collection (1927-2014), former Chairman of the Arizona-Sonora Desert Museum. The piece
measures about 4x2.5cm @ 300.00. One only, with both labels accompanying, top quality for this species and type locality!

PAPAGOITE- New Cornelia Mine, Ajo, Pima Co., Arizona
This uncommon mineral occurs as blue masses and thin streamers in seams and on the surfacec of brownish, quartz monzonite matrix, here from the type locality for the species. The locality has also produced ajoite (type locality), as well as more than 80 other minerals! Acquired circa 1965, specimens with good color from about 2cm to 5cm across @ 15.00, 30.00 and 55.00 each, depending on coverage.

PATRONITE with "QUISQUEITE"- Minasragra, Cerro de Pasco, Peru
An old and rich specimen comprised of dark bluish-black patronite intimately intergrown with "quisqueite", alternately now known as either a highly sulfurous carbon compound or vanadium-rich lignite. The material was first described in 1906 in the Engineering and Mining Journal, and later in 1907 in the Journal of the American Chemical Society. A rich hand specimen, accompanied by a heavily deteriorated J. Cilen label (with strange blue crustymineral growths!) AND an orignal Lazard Cahn label showing spotty deterioration as well, specimen size about 9x7cm @ 125.00.

PLACER CONCENTRATES- Long Valley, Valley Co., Idaho
From our materail desccribed in Mineral News (2018) Vol. 34, No.6, these are heavy mineral concentrates from the Cascade area dredge jigs obtained by noted geologist and mineralogist Prof. E.W. Heinrich in the 1950s. Our analytical work on these fascinating tiny grains shows predominant ilmenite, and each 5x1.5cm vial will likely have associated spessartine, magnetite, columbite-(Mn), monazite -(Ce), euxenite-(Y), yellow titanite, trace fluorescent zircon and others! Great looking under the 'scope, and a "must-have" for sand collectors @ just 10.00 per 5cm vial.

PYROLUSITE variety POLIANITE- Lake Valley, Sierra Co., New Mexico
These are thickly intergrown, needle-like aggregates of pyrolusite forming radiating masses of greyish black "polianite" scattered in sooty, black matrix, some likely admixed with ramsdellite which is more typically in blocky aggregates and crystals. EDS analysis confirms simple Mn-oxide, and the morphology is a useful key as well to this obsolete varietal name often used to differentiate crystalline pyrolusite from its botryoidal forms. Old material, sure to turn your hands black upon handling, sizes from about 2.5cm to 5cm across @ 8.50, 15.00 and 25.00 each, with analytical copy!

QUARTZ- Crystal Peak, Incline Village, Nevada
A large single crystal of smoky quartz without matrix, overall stands about 31cm tall(!!!) and collected in the distant past. Only one on hand, a monster that is dark brown, translucent crystal that is singly terminated and prepped to stand upright @ 2000.00. The largest one we have ever seen from the locality. Yikes!

QUARTZ- Minas Gerais, Brazil
A very complex and appealing, large rehealed multi-crystal of quartz with hundreds of offsets, steps, and parallelgrowth faces, the largest faces being up to 3 cm across. The overall piece is rather flattened, and if studied carefully, appears to be a single, contiguous crystal (and doubly-terminated at that), despite the hundreds of separate vicinal faces on multiple terminations on the specimen. The quartz itself is colorless to lightly smoky, mostly transparent, and highly vitreous. Muscovite crystals and crystal fragments (to about 2 cm) are randomly embedded in the quartz, giving it even more of an unusual look. One termination has some damage to the tip, but otherwise there is little or no damage on the display side of the specimen. This is definitely a good piece for those collectors interested in complex and/or irregular crystal forms. Specimen size: whopping 12x8x4 cm @ only 60.00.

RIOTINTOITE (IMA #2015-085)- La Vendida Mine, Antofasgasta, Chile
This relatively NEW SPECIES occurs as microscopic, colorless platy crystals and aggregates on matrix, occasionally associated with pale green eriochalcite or other phases. Formula: Al(SO4)(OH)3*#H2O - triclinic, IMA # 2015-085. Author's material, portion of type, only a couple of small smaples about 1cm across @ 250.00 each. List alternates!

ROBERTSITE- Tip Top Mine, Custer Co., South Dakota
This phosphate mineral, named for the well known mineralogist and author Willard (Bill) L. Roberts, occurs as medium to dark brown crystalline aggregatess scattered over a phosphate rock matrix. These samples were originally provided by Roberts to Julius Weber, and were recently uncovered here in our warehouse. Bill's personal label with his Harter Drive address in Rapid City accompanied the material, and we supply a copy of the W.L. Roberts label with each specimen from this small lot, the mineral distinguished by its radiating structure and associated with the typical group of secondary phosphates this locality is well known for. Only a few on hand, averaging 3cm to 4cm across @ 35.00 each, with the copy of the Roberts label. Sizes from 2.5cm to 6cm @ 15.00, 25.00, 35.00, and 50.00 each. Similar material from the White Elephant Mine also available - inquire!

ROSASITE- Mina Ojuela, Mapimi, Durango, Mexico
Bright blue botryoids of attractive rosasite scattered on limonitic matrix, occasionally with associated calcite and possibly other phases. These were acquired in the 1970s when Mexican material was at its peak, and many will also yield good micro material as well. Specimen sizes range from 2.5cm to 4.5cm @ 10.00, 20.00 and 35.00 each, depending on quality. Colorful and quite pretty!

SCHIZOLITE (IMA 2013-067-18B)- Wessels Mine, Kalahari, N. Cape Prov Rep South Africa
This NEW SPECIES is a redefinition of marshallsussmanite, occurring as delicate, pale pink aggregates, from this famous manganese deposit, these without matrix. Formula: NaCaMnSi3O8(OH), triclinic, a new member of the pectolite group with approved IMA #2013-067, updated as #18B. The material was first described in 1900 from Greenland, subsequently discredited, now approved as a redefinition of marshallsussmanite. From the 2013 author's material, small boxed specimens, quite pure, averaging about 5mm across @ just 55.00 each.SIUDAITE (IMA #2017-092)- Eveslogchorr Mt., Khibiny, Kola Peninsula, Russia
This NEW SPECIES occurs as minute, brownish orange masses, here generally without matrix and offered as <1mm fragment in a vial. The complex formula is: Na8Mn2+2Na)Ca6(Fe3+,Mn2+)3Zr3NbSi24(Si,[],Ti)O74(OH)2Cl*5H2O - trigonal, IMA #2017-092; a member of the eudialyte group. Found at the Astrophyllite Stream, this is author's material, portion of type @ 145.00 each.

SMITHSONITE on ORE- Tsumeb Mine, Oshikoto Region, Namibia
An old-timer from the Tsumeb heyday, here as excellent, tabular to grain of rice shaped transparent to translucent smithsonite crystals completely covering a heavy ore matrix comprised of fine grained galena, tetrahedrite and likely other sulfides intergrown and underlaying the smithsonite. The crystals are generally clear to slightly grey, but show a very subtle purple hue as well. Ex-Hamel collection, overall size about 10x5cm, quite heavy and with full
coverage on the top surface, competitively priced at just 150.00. One only!

STIBNITE- La Noria Mine, San Martin, Zacatecas, Mexico
From old material acquired circa 1965, these samples show thin, needle-like crystals of stibnite on matrix, some with transparent to translucent calcite scalenohedral micro crystals, and some even including the stibnite itself. Representative specimens that display well and will also yield good micromounts from an uncommon locality 50 years in the past, overall sizes from about 2.5cm to 5.5cm offered at just 7.50, 15.00 and 30.00 each.

STILBITE- Getchell Mine, Humboldt Co., Nevada
Water-clear micro crystals of spear-shaped, tabular stilbite richly scattered in seams and vugs on matrix, some associated with minor calcite, corroded realgar and possibly other species. Excellent micro material from a classic locality in which this zeolite has been rarely offered, sizes from 1.5cm to 6cm @ 7.50, 12.50 and 25.00 each.

SYLVITE w/ CARNALLITE, HALITE- Saskatoon, Saskatchewan, Canada
Deep brownish-red sylvite richly scattered and included in colorless, massive halite matrix. Excellent for the species and old material collected over thirty years ago, also with massive carnallite and possibly other included phases. Generous matrix specimens from 3cm to 6cm @ 8.00, 15.00, 25.00 and 40.00 each. A few large specimen to 12x7cm @ 85.00.

TRIAZOLITE (IMA #2017-025)- Pabellon de Pica Mt., Iquique Prov., Chile
Another NEW SPECIES from the Tarapaca Region, here as very minute, deep purplish-blue crystalline aggregates very sparsely scattered in matrix, and most will require a 'scope to see them properly. Formula: NaCu2(N3C2H2)2(NH3)2Cl3*4H2O, orthorhombic, IMA #2017-025. Author's material from the type. Matrix sizes average about 1 cm across @ 240.00 each. List alternates!

URANOPHANE- Margaritas Mine, Sierra Blanca, Chihuahua, Mexico
Small tufts and radiating needles of bright yellow uranophane scattered on tan to red-brown matrix, from the type locality for the cesium-rich margaritasite. These samples have been chemically and structurally confirmed, and a copy of our EDS work accompanies each sample. Matrix sizes from about 2cm to 5cm @ only 8.00, 15.00, and 25.00 each, many with modest micro potential as well.

VARISCITE- De Linde Mine, Avant, Arkansas
Bright, bubbly green balls of variscite richly scattered in seams and on matrix, many with flattened sprays of minor wavellite. Old, choice material from the early 70's, most with good micro potential as well, matrix sizes from about 2.5 to 8cm @ 5.00, 8.50, 15.00, 25.00 and 40.00 each. Attractive and colorful stuff!

WULFENITE- 79 Mine, near Hayden, Gila Co., Arizona
Beautiful groups of wulfenite: color ranges from butterscotch to brilliant pumpkin orange. All are transparent. Many have individual crystals to 1cm. Some on sharply contrasting nearly black matrix. Others have tiny radiating sprays of a white mineral, possibly hemimorphite. Collected circa 1970 and priced according to intactness, beauty and size. Matrix specimens with small, thin crystals from 1cm to 2.5cm @ just 12.50, 20.00 and 30.00 each.

ZAKHAROVITE- Mont St. Hilaire, Quebec, Canada
Small masses and subhedral crystals of orange-brown zakharovite sparsely scattered in matrix. Moderately rich for a rare species, these from an old find of X-Ray confirmed material. Sizes from 2cm to 3cm priced according to quality, the better pieces with some micro potential @ 45.00, 60.00 and 85.00 each. Only a few available!ZIPPEITE- Section 35 Mine, Grants, McKinley Co., New Mexico A small selection of fine zippeite specimens, ex-Cureton, occurring as small bright yellow aggregates richly scattered on dark rock matrix. TNs available to 1.5cm @ 20.00; a superb 7x6cm specimen @ 125.00. Rarely offered, old material!
9
Shops/dealers / Re: Excalibur Mineral / Tony Nikischer
« Last post by Frank de Wit on July 12, 2018, 09:20:40 AM »
CATALOG 21804 – Volume XLV, No.4

Our 45th Year!


BOOKS
REPORTS OF THE VERMONT- STATE GEOLOGIST Various Years
We have several bound volumes of this historic work by George H. Perkins, State Geologist and Professor of Geology at the Univbersity of Vermont. The volumes are well-used but content is detailed and rarely available today for discussions of the geology, paleontology and the various mineral industries of the day:
The 1903-1904 volume is 236 pages, illustrated with many black and white photographs and diagrams, including a very well-illustrated section on fossils of the Brandon lignite deposits, priced at 45.00.
The 1913-1914 volume is almost 450 pages long and complete with fold-out, full color maps, black & white illustrations and photographs, and excellent discussions of the many named marbles and granites quarried in the state, priced at 55.00.
The 1915-1916 volume is 333 pages and similarly bound, also with black and white plates, maps and illustrations, this edition with a discussion of bothe copper mining in the state as well as the talc and serpentine industry among the usual articles and discussions, priced at 45.00.
The 1925-1926 volume is 322 pages and bound as te previous editions, with many black and white plates and diagrams. One of interesting chapters is devoted to the discovery of the St. Albans Cambrian "Fish Plate", plus a locality list of Vermont Invertebrate fossils, at 45.00.
The 1931-1932 volume is 387 pages, likewise bound as above, illustrated with over 70 figures as black and white photographs and maps. This edition largely focuses on the marble industry of the state, priced at 35.00. These are available as individually priced, or the set of five at just 195.00 for the lot, plus shipping.

GEM
BERYL variety EMERALD- Colombia
Small facetted emeralds with rich, green color and good transparency, here as bagettes, square princess cuts and emerald cuts as well, in good commercial quality used extensively by jewelers for sidestones and replacements, most in the 3mm to 4mm size range. We offer a small lot of six (6) stones weighing about one carat total weight at just 45.00 per lot! Limit two lots per customer, please, while supply lasts!

PETROLOGY SAMPLES
NUMMULITIC LIMESTONE- Baena Mt., Tatabanya, Komarom, Hungary
Odd petrological/fossiliferous material, comprised of dull, pale grey limestone, typically with sparse impressions or actual disk-like foraminiferan fossils of nummulites evident. The name is derived from the Latin word meaning "little coin", in allusion to the early use of the fossil shells as coins in ancient Egypt. The pyramids were built of nummulitic limestone, and the rock is widespread in some areas around the Mediterranean. Specimens from about 3cm to excellent 10cm sizes @ 10.00, 20.00, 40.00 and 65.00 each. Excellent and uncommon locality material!

COMING NEXT TIME
A number of new species are on hand and almost ready to go.Expect to see these in our next list:
Janchevite (IMA #2017-079) from Kombat Mine, Namibia
Ferrierite-NH4 (IMA #2017-099 from Czech Republic
Zincovelesite-6N6S (IMA #2017-034) from MacedoniaStefanweissite (IMA #2018-020) from Germany
Plus other rarities! Limited quantities of these - check out our next catalog!
10
Mineral fairs/meetings / Re: Socorro
« Last post by Frank de Wit on July 11, 2018, 09:08:55 AM »
New Mexico Mineral Symposium
http://geoinfo.nmt.edu/museum/minsymp/home.cfml

10-11 november 2018

New Mexico Institute of Mining and Technology, Macy Center
http://www.strahlen.org/forum/index.php/topic,6805.0.html

For the Abs, see http://www.strahlen.org/forum/index.php/topic,20418.0.html
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