Rare Mineral Specimens - search page
- Availability
- Available
- Price
- $35.00
- Locality
- Coal Hill Lead vein, Rossie, St. Lawrence Co., New York, United States
- Formula
- TiO2
- Size
- 3 x 2.5 x 2 cm - Thumbnail
Translucent blue crystals less than 1mm with a unique square termination.
- Availability
- Sold
- Locality
- Bristol Dry Lake, Saltus, San Bernardino Co., California, United States
- Formula
- CaCl2ยท6H2O
- Size
- 7 x 3.5 x 3.5 cm - Sm Cabinet
Colorless Antarcticite in a vial. It is extremely hygroscopic as is uptakes water.
- Availability
- Sold
- Locality
- Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy
- Formula
- KBF4
- Size
- 3.5 x 1 x 1 cm - Miniature
- Special Info
- Type Locality
Lemon yellow, earthy masses of Avogadrite in a vial. The masses are around 1cm. Avogadrite is named after Amedeo Carlo Avogadro(1776 – 1856) an Italian physicist who determined the molecular theory that the number of molecules per mole of substance is exactly 6.02214076×10^23. It is otherwise known as "Avogadro constant". It is used to this day in chemical reactions. I use it all the time when I make pizza.
Avogadrite is a three locality mineral.
- Availability
- Available
- Price
- $85.00
- Locality
- Metcalf mine, Greenlee Co., Arizona, United States
- Formula
- Cu3(CO3)2(OH)2
- Size
- 8.5 x 5.5 x 3.3 cm - Sm Cabinet
- Tagged
- carbonate, copper
Rich blue superb crystals of Azurite in sheaf-like bundles. It is lustrous and displays well.
- Availability
- Available
- Price
- $50.00
- Locality
- Nordre Boksjø quarry, Idd, Halden, Østfold, Norway
- Formula
- Ca4Be2Al2Si9O26(OH)2
- Size
- 5.5 x 4 x 2 cm - Sm Cabinet
- Tagged
- beryllium
Rich specimen of tiny white pearly plates to 0.5mm on corroded. Ex. Claus Hedegaard collection (see prov. tab).
- Availability
- Available
- Price
- $40.00
- Locality
- Penberthy Croft mine, St. Hilary, Cornwall, England
- Formula
- Cu3PbO(AsO3OH)2(OH)2
- Size
- 4 x 3 x 3 cm - Miniature
- Tagged
- arsenate, copper
Grass green micro crystals on Quartz.
