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
- $575.00
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- PbSb3+O2Cl
- Size
- 5.3 x 2.5 x 1.2 cm - Sm Cabinet
Yellowish orange tabular crystals of Nadorite. These are extremely hard crystals to obtain on the market. The best crystal is that of the second photo. It is 1mm and is the type of crystal that is shown on Mindat by Christian Rewitzer. There are several smaller crystals. The white sprays have been identified as Mimetite at the RRUFF lab. The Mimetite was an unkonwn as reported in the book "Langban" by Bollmark and others.
- Availability
- Available
- Price
- $375.00
- Locality
- Săcărâmb (Nagyág in Hungary), Romania
- Formula
- [Pb(Pb,Sb)S2][(Au,Te)]
- Size
- 6 x 4.5 x 1.7 cm - Sm Cabinet
- Tagged
- sulfide, silver, gold
- Special Info
- Antique Specimen
- Special Info
- Type Locality
Dark grey to black crystal plates of Nagyagite with rod-like crystals of Hessite. See prov. tab for old label. There are three clusters of crystals to 4mm in vugs. Nagyagite from Nagyag is incredibly difficult mineral to obtain.
- Availability
- Sold
- Locality
- Basic Refractories mine, Gabbs, Nye Co., Nevada, United States
- Formula
- Cu8(SO4)4(CO3)(OH)6·48H2O
- Size
- 4.5 x 3 x 1.8 cm - Miniature
- Tagged
- carbonate, copper
Tiny bundles of light blue fibrous or acicular crystals in an area 1mm across intimately associated with deep azur blue and sharp Callaghanite.
- 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
- NiSO4·6H2O
- Size
- 3 x 3 x 1.3 cm - Thumbnail
Green nondescript masses on nickel-bearing gabbro.
