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June 22, 2018, 07:31:03 AM

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51
Mineral fairs/meetings / Steinbach
« Last post by Frank de Wit on May 18, 2018, 02:20:37 PM »
52
Shops/dealers / Re: Purple-Sky-Minerals / David Hospital
« Last post by David Hospital on May 17, 2018, 04:41:43 PM »
New rare minerals at auction on Geo-Trader..have a look if you are interested !

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

Purple Sky Minerals
54
Mineral fairs/meetings / Re: Cremona
« Last post by Frank de Wit on May 17, 2018, 12:23:21 PM »
Incontro Micromounters di Cremona
http://www.gmc-cr.it/?option=com_content&task=view&id=2&Itemid=4&lang=en
Organized by the Gruppo Mineralogico Cremonese http://www.strahlen.org/forum/index.php/topic,7143.0.html

8-9 september 2018

ITIS "J.Torriani"
Via Seminario 19, 26100 Cremona, Italy

Also see:
http://forum.amiminerals.it/viewtopic.php?f=5&t=14543
55
Shops/dealers / Re: Purple-Sky-Minerals / David Hospital
« Last post by David Hospital on May 16, 2018, 01:01:27 PM »
Hi lovers and passionates of systematic minerals,

The new auction of systematic minerals is online at E-rocks /Purple Sky Minerals !!

https://e-rocks.com/items/auction/968844/purple-sky-minerals-15-may-22-may-2018

Some outstanding rarities in this auction are:

Miersite & Bromargyrite & Chlorargyrite (outstanding specimen from Broken Hill !)
Diaboleite (from Mammoth mine, outstanding specimen !)
Betalomonosovite
Metarossite & Lasalite
Kenshuite
Hochquarz
Hypercinnabarite
Burpalite
Denningite
Ericaite
Kupletskiite
Kovdorskite
Cafarsite
Tapiaite
Gerasimovite
Vanuralite
Ningyoite
Cerianite-(Ce)
Schmitterite
Schrockingerite
Sulvanite
Tubulite (outstanding red tube !!, unusual color for the species !).
Lobanovite
Platinum
Sorensenite
Pyrite
Hilairite
Gramacciolite
Huemulite
Cobaltomenite
Pellouxite
Tocornalite
Bavenite
Iron
Whelanite



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

Good luck if you bid !
58
Museums / Belgium, Antwerp, Diamantmuseum DIVA
« Last post by Frank de Wit on May 14, 2018, 06:56:58 PM »
60
Shops/dealers / Re: Excalibur Mineral / Tony Nikischer
« Last post by Frank de Wit on May 12, 2018, 08:02:14 PM »
CATALOG 21803 – Volume XLV, No.3

ACANTHITE- Imiter Mine, Tinghir Province, Morocco
Excellent, crudely crystallized acanthite without matrix, here as dull greyish black spiney to blocky aggregates comprising matrix. These are likely from the 2007 find and recently uncovered in our warehouse. Attractive minatures mounted on clear leucite bases, groups average about 4cm and offered at just 95.00 each. Only a few on hand!

BAFERTISITE- Gremyakha-Vyrmes, Kola Peninsula, Russia
This uncommon mineral occurs here at Gremyakha Lake as tiny, orange-red glassy elongated aggregates lightly scattered in matrix, typically associated with black arfvedsonite and feldspars. The material is near endmember in composition, the highest Fe-rich bafertisite ever recorded, and named for its composition (Ba-Fe-TiSi). A few samples are available with micro aggregates, specimen sizes average 3cm across @ just 55.00 each.

BAYLEYITE over ANDERSONITE- Ambrosia Lake District, McKinley Co. New Mexico
Bright yellow, small cauliflower-like crusts and aggregates of this unusual Mg-U-carbonate richly scattered over matrix. Under the 'scope, careful study will show the underlying, pale green, micro andersonite as well. Both species are fluorescent (bright greenish), with andersonite showing greater SW-UV intensity. Originally acquired in 1966, this radioactive material makes excellent fluorescent specimens as well great micro potential samples. Coverage is very rich in hand specimens, and sizes range from about 2cm to 5cm @ 20.00, 40.00 and 60.00 each, richer and less expensive than the material we offered in 1996! Nice stuff!

BERAUNITE w/ FERRISTUNZITE- Blaton, Mons, Henegouwen, Belgium
Dark brownish green to nearly black sharp micro crystals of radiating beraunite lightly scattered on matrix, most associated with yellowish, straw-like needles and groups of ferristrunzite (for which this is the type locality for the latter). The matrix sports a dull, murky green botryoidal coating which appears to be chemically similar to mitridatite based on our EDS work, and only three specimens on on hand, all ex-Renaud Vochten Collection, sizes averaging about 3cm across at just 25.00 each, all with micro potential.

BISMUTH with ARSENOPYRITE- Puy-les-Vignes, Novelle-Aquitaine, France
Rather ugly stuff comprised of greyish-white metallic bismuth veinlets and pods scattered in massive white quartz matrix, typically associated with massive grey arsenopyrite and occasionally other sulfides. Under the 'scope, some of the bismuth may show a distinctly pinkish tarnish typical of this native element, and specimen sizes range from about 2cm to 6cm across @ just 8.50, 15.00 and 30.00 each.

BIXBYITE on TOPAZ- Thomas Range, Juab Co., Utah
Collected in the late 1960s, these are small black submetallic cubes of bixbyite up to 4mm in size perched on rhyolite matrix, some with micro, sand-encrusted crystals of topaz. Prolific at the time, this lot has been sitting for many years and well represents the species and its unique association at the locality. Matrix sizes from 1.5cm to 4cm and some with micro potential as well @ just 10.00, 17.50, and 25.00 each, depending on crystal size.

BRUGGENITE- Pampa Pique III,Lautaro, Antofagasta Chile
Recently found in the warehouse, a small lot of bruggenite aggregates, each about 4 to 5mm across of relatively pure, colorless to white drusy masses without matrix, each individually packaged in a small container. Old Cureton material and a rare hydrous Ca-iodate from the type locality for the species. Only a few available @ 40.00 each.

CALCITE pseudomorph @ WHEWELLITE- Elk Creek, Meade Co., South Dakota
A rare occurrence of calcite replacing whewellite, here as very thin, platy white aggregates stacked in repeating tiny platelets, some on thin, yellowish calcite from an earlier generation. The pseudomorphing is often not complete as evidenced by the slight variation in fluorescent response seen in the specimens, ranging from bright bluish white to pale yellow and occasionally pinkish hues under both SW and LW UV. Many show greenish phosphorescence as well, making them rather exciting for the fluorescent as well as pseudomorphcollector. We have a range of specimens, from small crusty TNs @ 45.00 and 65.00, to an excellent, well crystallized miniature @ 400.00. A few cabinet specimens available as well, prices to 1500.00 - inquire!

CHALCOPHANITE- Gold Hill Mine, Tooele Co., Utah
Dark grey to black micro aggregates of this highly lustrous, metallic hydrous Zn-Mn oxide on limonite matrix, typically filling vugs and exposed seams and often with tiny, water clear to pale yellow adamite lightly sprinkled about. Infrequently offered from this prolific locality, matrix specimens range from about 2cm to 6cm across @ just 10.00, 15.00, 25.00 and 40.00 each, many with micro potential as well.

CHALCOSIDERITE w/ HISINGERITE- Wheal Phoenix, Liskeard, Cornwall, England
Many green micro crystals of chalcosiderite dust a matrix of vesicular hematitic ore on these examples from the type locality for this species. Resinous brown hisingerite(?) also lines cavities in the pock-marked matrix. Old stuff from a classic locality, all with good micro potential as well, sizes 2cm to 5cm @ 12.50, 20.00, and 35.00 each. Nice!

CHAMBERSITE- Barbers Hill Salt Dome, Chambers Co Texas
Deep purple, perfectly formed tetrahedrons of chambersite without matrix, ranging in size from about 1.5mm to nearly 3mm across. Classic, type locality material for this uncommon Mn-BO-Cl mineral, these from the W.C. Krumbine collection acquired over 20 years ago, offered @ just 7.50, 10.00 and 15.00 each.

CINNABAR- Cahill Mine, Humboldt Co., Nevada
Bright red flatted aggregates of crystalline cinnabar well scattered on cherty matrix, most showing high luster but with few crystal faces evident. Old Cureton material from many years ago, matrix sizes ranging from 2.5cm to 6cm across @ just 15.00, 30.00 and 45.00 each.

CONICHALCITE- Gold Hill Mine, Tooele Co., Utah
Attractive and colorful, rich green botryoidal conichalcite scattered on limonitic gossan matrix, some with attractive blue chrysocolla, some with tiny, occasional "sputniks" of paler green cuprian austinite overlaying the conichalcite balls. These are quite good for the locality, collected about 20 years ago from the Glory Hole. All samples make nice additions to your cabinet and will yield decent micromounts as well. We have choice, cleaned specimens from about 2.5cm to 8cm @ just 5.00, 12.50, 20.00, 30.00 and 45.00 each. Nice stuff!

CRICHTONITE (Plumboan)- Presidente Kubitschek, M.G., Brazil
Small opaque black masses of Pb-rich crichtonite sparsely scattered on heavily included quartz crystals, occasionally reported with minute rutile pseudos after anatase as well. A moderately rare species, obtained from Luis Menezes (menezesite) over 25 years ago, from small micro's @ 20.00 to larger matrix sizes of 1.5cm to nearly 6cm @ 30.00, 45.00, and 75.00 each.

DIAMOND- Namaqualand Region, No. Cape Prov., Rep So Africa
Originally called the Cape of Good Hope, this region was split into four provinces in 1994 and includes the diamond producing areas around Kimberley in Northern Cape Province. Offered here are transparent, pale yellowish complex dodecahedral diamond crystals without matrix, typically about 5mm in longest dimension and weighing an average of about 0.60 carats each. Gemmy and pleasing color for these attractive stones at just 80.00 each! Limit one per order, please!

EFREMOVITE w/ BOUSSINGAULTITE- Kladno, Bohemia, Czech Republic
This uncommon ammonium-magnesium sulfate occurs as richly scattered, small white globular masses on matrix. Due to its hydroscopic nature, we suspect all have associated but visually indistinguishable boussingaultite as well. Old Cureton material from more than 30 years ago, sizes from about 5mm to 2cm @ just 10.00, 17.50 and 30.00 each. One 5x5cm @ 150.00 and a monster10x8cm @ 400.00. List alternates!

FLUORITE- Boulder Hill Prospect, Lyon Co., Nevada
Transparent to pale grey cubes of fluorite up to 1cm on edge richly scattered over and comprising matrix, all showing brilliant fluorescence under both LW and SW UV! Excellent reference specimens at an unbeatable price, sizes from about 2cm to 5cm @ just 5.00, 10.00 and 20.00 each, all well crystallized and with superb fluorescent response!

HYDROPYROCHLORE- Leushe, Kivu, Dem Rep Congo
This newly defined species occurs here as tan to pale brownish, sharp octahedral crystals without matrix, some of the better crystals showing interpenetration twins or slightly cavernous faces. Part of the recently published overhaul of the pyrochlores, these type locality crystal specimens range in size from about 3.5mm to 7mm across @ just 15.00, 20.00 and 30.00 each.

KEITHCONNITE- Minneapolis Adit,Nye,Stillwater Co. Montana
A small polished ore section from the type locality showing minute spots of silvery, brightly metallic keithconnite in enstatite ore matrix. Only one sample available @ 175.00.

LEGRANDITE etc.- Ohgibira Mine, Okayama Pref., Honshu Japan
An interesting specimen of gossan-rich matrix showing one small vug containing very pale yellowish legrandite micro crystals, more transparent and with less color than those found in Mexico and elsewhere. A range of associations are evident in the sample, including hisingerite, aragonite and other unidentified phases. Collected about 15 years ago from this depleted locality, specimen size about 6x4cm @ 65.00. One only.

MEYMACITE- Nzombe, Kivu, Zaire
This rare mineral occurs here as resinous, brownish masses scattered on matrix, associated with yellowish ferberite (variety "ferrotungstite") and occasionally scheelite. Ugly stuff but quite rare, ex-Cureton stock, small samples from 4mm to 8mm @ 45.00 and 75.00 each.

MICROCLINE var: AMAZONITE- Crystal Peak, Teller Co., Colorado
From an old stash collected over 50 years ago, a nice assortment of single crystals of amazonite are now available! Color is a pleasing pale blue so typical of the variety, and all show good development and sharp faces with a typical cleavage or attachment point on the specimens. The crystals range in size from about 2cm to nearly 4.5cm tall @ just 10.00, 15.00, 25.00 and 50.00 each, depending on quality and size. Moderately attractive material from this classic locality!

MISERITE with WOLLASTONITE- Union Carbide Mine, Wilson Springs, Arkansas
Pinkish fibrous masses of miserite scattered in matrix, associated with greyish white wollastonite and possibly other phases. Fluorescent bright yellowish due to the admixture with wollastonite, all with excellent fluorescent response. Interesting material from this type locality for the mineral, now specifically known as the North Wilson Pit, sizes from 2cm to nearly 7cm @ 10.00, 20.00, 35.00 and 50.00 each.

PAVLOVSKYITE (IMA #2010-063)- Lakargi Mt., Kabardino-Balkaria, Russia
Another moderately rare species from this carefully studied area in the Northern Caucasus, here as minute white grains well scattered in larger larnite matrix in 2cm + polished sections of holotype (!) material. Each sample is accompanied by a color image, several SEM images and complete EMPA data as well. Formula: Ca8(SiO4)2(Si3O10) - orthorhombic- IMA #2010-063. Only a couple of superbly documented samples on hand @ 275.00 each. List alternates!

PHOSINAITE-(Ce)- Kedykverpakhk, Lovozero, Kola, Russia
A small lot of specimens acquired years ago from a Russian museum, this rare mineral occurs here as tiny, tan to brownish elongated aggregates perched on pale pinkish ussingite matrix, often with white "thermonatrite" efflorescence evident. Only a few small samples, matrix sizes ranging from about 1.2cm to2cm across @ 45.00 and 65.00 each, priced according to coverage, not size. List alternates!

PYRARGYRITE- San Lorenzo Mine, Taxco, Guerrero, Mexico
A pair of excellent pyrargyrite specimens, expertly mounted by the late Lou Perloff (perloffite) and labeled in his hand, found among material acquired from the Julius Weber collection. The specimens each show wellcrystallized, deep red pyrargyrite largely comprising matrix, overall 1.5cm @ 95.00. Excellent and richly colored!

PYRITE etc.- Cabrestante Mine, Concepcion del Oro, Zacatecas, Mexico
This Zacatecas locality was best known for an unusual lot of scorodites discovered some years ago and recently mentioned in a 2016 Mineralogical Record article. However, its pyrite specimens are among the best of Mexico, these acquired in the 1960s and only recently unpacked here. These have numerous pyritohedral crystals to 1cm across richly scattered across matrix, some with underlying massive sphalerite and/or galena evident as well. Old stuff, respectable, well-crystallized specimens from about 4cm to 7cm at just 10.00, 20.00 and 35.00 each.

PYROMORPHITE (Arsenian)- 510'L, Chalk Mt Mine, Churchill Co., Nevada
Collected many years ago from the 510' level at the Hanlase Drift, these are micro greenish-brown, barrelshaped, arsenate-rich pyromorphite crystals richly scattered on matrix. Noted by Castor and Ferdock in NBMG Special Publication No.1, this was the only arsenic-rich pyromorphite reported in the state. Matrix sizes vary from about 1.5cm to 4cm across, all with good coverage, @ 8.50, 12.50 and 20.00 each.

QUARTZ with BUBBLE- Nant Helen, Merthyl Tydfil, Wales, United Kingdom
An intriguing specimen, comprised of a 2cm terminated quartz point resting on matrix with minor ankerite/dolomite rhombs, but the base of the crystal shows a neat gas bubble that is stationery and easily seen at 20x with the aid of our arrow. The specimen size is about 5x3cm @ just 25.00. A similar specimen without the bubble but more ankerite is about 6x3cm @ 15.00. Only one of each!

RUDENKOITE- 80km SEE of Aldan, Yakutia, Russia
Another extremely rare species just reacquired, this one occurring as tiny, slender, white fibrous aggregates extracted from XRD material and mounted on a 1.3cm black stub. Formula: Sr3Al3.5Si3.5(OH,O)8Cl2*H2O, monoclinic, IMA #2003-060. Type locality, of course, only two available @ 325.00 each.

SAKHAITE- Titovskoe, Khayhtakh Mts.,Yakutia, Russia
From the type locality, we have greyish-white massive sakhaite, containing small grains of black ludwigite and possibly other minerals. Plain in appearance but classic stuff from a small museum lot, only a few available, sizes measuring 1 cm to nearly 4cm across at 45.00, 75.00, 125.00 and 200.00 each.

SAKURAIITE- Ikuno Mine, Hyogo Prefecture, Japan
Small fragments of this rare Cu-In-Sn sulfide are isolated in a small vial, these from the type locality, typically associated with stannite or other sulfides. The mineral was named in 1965 for Dr. Kinichi Sakuarai, one of the few amateurs with more than one mineral named in his honor. Only a few available @ 75.00 each, ex-Cureton specimens.

SERANDITE on CATAPLEITE pseudo- Mont St. Hilaire, Quebec, Canada
Delicate, salmon-pink triclinic crystals of serandite nicely scattered over strange, dodecahedral-appearing reticulated catapleite pseudomorphs after a eudialyte group mineral. These small but attractive specimens may disclose other MSH-associated minerals as well, the underlying euhedral crystals resembling Goldschmidt's illustrations (#s 11 and 13) for eudialyte. Choice specimens, overall 1cm to 1.5cm @ 35.00, 50.00, 65.00, 75.00, 85.00 and 125.00 each, depending on quality. The last of this attractive and curious material!

STILLWELLITE-(Ce)- Castellaccio di Petrignano, Latium, Italy
Very tiny, pale pink transparent crystals of stillwellite-(Ce) very sparsely scattered and perched in vugs among crystalline sanidine matrix. Typical associations include magnetite and occasionally tiny green, prismatic thorites and possibly other species, these from the 1977 discovery at this Vetralla locality. Specimens average 3cm @ 45.00 each, all with a pinpointing arrow.

TETRAHEDRITE- Tintic Standard Mine, Utah Co., Utah
A smallish miniature comprised of dense, largely massive, black tetrahedrite, here with minor quartz crystals and likely intermingled other sulfides. The specimen is ex-Sunshine Acres School collection, a private school once extant at the Sunshine Acres nudist colony at Mays Landing, the first of its kind in the U.S.. Interesting historical piece with old label, size about 4x3cm at just 20.00. One only!

TINTICITE- Gold Quarry Mine, Eureka Co., Nevada
Appearing as earthy crusts, this occurrence of tinticite is actually mats of finely fibrous acicular tan micro crystals, readily observable at highest magnifications, with typical Gold Quarry associations. Often formed by reaction between phosphatic solutions derived from bat guano and iron from oxidizing pyrite and known only from a few localities, this may be the best to date. Sizes from 1cm to 5cm @ 25.00, 40.00, 60.00 and 85.00 ea.

URANINITE etc.- Ruggles Mine, North Grafton, New Hampshire
A classic specimen that ripped through our Geiger counter with its screaming heat! The piece is a pegmatitic block that encloses numerous uraninite pods, these accompanied by fluorescent meta-autunite, dull yellow phosphuranylite, orange-hued "gummite" and the typical mica sheaves. It is ex-Bob Whitmore (whitmoreite) and Albini collections, overall size about 6x4.5cm @ 125.00. Hot!

BOOK
ROCKS & MINERALS- by E.P. Bottley
Author E.P. Bottley was best known as a London mineral dealer who purchased the J.R. Gregory dealership in 1931, becoming “Gregory & Bottley” and later “Gregory, Bottley & Lloyd” after his death in 1980 (many old collections have numerous specimens from this mineral concern, as do we in our warehouse.). His book, a hardcover, 95 page treatise, contains 113 color and black and white specimen images, and this lightly used and clean copy also has its original dust jacket. Size is about 26x21cm and is inexpensively offered at just 15.00 plus shipping.

EPHEMERA
PHELPS DODGE STOCKS
Perhaps one of the best known mining companies, Phelps Dodge was commonly associated with its operations at Bisbee and elsewhere in Arizona, but it also had extensive properties in New Mexico. Founded in 1834, it became the largest publically traded copper mining company in the world when acquired by Freeport-McMoRan Copper & Gold in 2007. We recently located an old stash of Phelps Dodge Stock Certificates, these noted as interim shares issued in 1929 when the company offered a 4:1 split to its stockholders, only months before the market crash that led to the Great Depression. An orange-hued certificate was used for 100 share blocks, and a more rare, green certificate was used for smaller holdings. While we have seen these offered for as much as 30.00 each, we will send you one of each type for just 15.00 a pair! All are cancelled and are in generally good condition, showing normal wear. A neat piece of history!
GEM
TOPAZ- "Swiss Blue" Brazil
Excellent, faceted Brazilian topaz in an unusual 10mm heart shape, these are heat treated to yield a superb "Swiss Blue" color that is the most desirable of topaz hues. Well-cut, gemmy and fully transparent and eye-clean stones average over 4 carats each @ just 30.00 per stone, or a matched pair at 55.00. Very attractive!
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