Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $3,750.00
- Locality
- Djebel Nador, Constantine prov., Algeria
- Formula
- PbSb3+O2Cl
- Size
- 7 x 5 x 3 cm - Sm Cabinet
- Special Info
- Antique Specimen
Smoky brown, translucent crystal plates measuring 7mm on edge. This is an antique specimen once in the collection of Emile Bertrand circa 1890's. Betrand was an early pioneer in the study of optical mineralogy and introduced the "Betrand" lens to the petrology microscope. He was one of the founders of the French Mineralogy Society and went to school at the Paris School of Mines. Please see the Mineralogical Record label archive for more information (click here) .
Betrand's label along with a few other labels are shown in the provenance tab.
- Availability
- Available
- Price
- $75.00
- Locality
- 10th level, Potosi mine, Santa Eulalia, Chihuahua, Mexico
- Formula
- Fe2+Sn4+(OH)6
- Size
- 4 x 2 x 3 cm - Miniature
- Tagged
- tin
A few distorted, bright orange, octahedral crystals less than 1mm on black Ilvaite with possible Helvine and colorless Fluorite.
- Availability
- Available
- Price
- $25.00
- Locality
- Koktokay pegmatite field, Altay, Xinjiang, China
- Size
- 1.1 x 0.7 x 0.5 cm - Thumbnail
A few tiny grains less than 1mm in polished probe epoxy. Natrobistantite is discredited bismuth-tantalum-niobium-antimony oxide.
- Availability
- Available
- Price
- $40.00
- Locality
- Jachymov, Erzgegirge, Bohemia, Czech Republic
- Formula
- NiSO4ยท6H2O
- Size
- 3 x 3 x 1.3 cm - Thumbnail
Green nondescript masses on nickel-bearing gabbro.
- Availability
- Sold
- Locality
- Nickel mine, Table Mountain dist., Churchill Co., Nevada, United States
- Formula
- NiAs
- Size
- 4.5 x 1.5 x 1.5 cm - Miniature
- Tagged
- nickel
Brassy looking Nickeline with alterations of light green Annabergite.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Bear Meadow Adit, Quartz Hill deposit, Ketchikan district, Alaska, United States
- Formula
- NiAs
- Size
- 11.5 x 6 x 3 cm - Cabinet
- Tagged
- Ore Minerals
All of the Cobalt specimens in this update probably originated from a study conducted in the 1960's. The results were summarized in the landmark publication "The Silver - Arsenides Deposits of the Cobalt-Gowganda Region, Ontario" edited by L. G. Berry with major contributions by W. Petruk and J. L. Jambor. On page 108, Petruk describes the five assemblages of mineralization at Cobalt. This specimen clearly fits into group #1, the Nickel-Arsenide assemblage characterized by complex botryoidal masses of Nickeline inter-growths with Breithauptite, Safflorite and Cobaltite. The minerals form concentric layers and it would be impossible to differentiate visually all the minerals without a thorough microprobe study. Looking closely at the ore, one can see the plumose-texture characteristic of all of these ore specimens. It is sawed flat and polished on one side.
