











Fine Mineral Specimens Over $50
- Availability
- Available
- Price
- $50.00
- Locality
- Majuba Hill mine, Pershing Co., Nevada, United States
- Formula
- CuFe3+2(AsO4)2(OH)2·4H2O
- Size
- 7 x 5 x 3 cm - Sm Cabinet
Lime green acicular sprays lining large vug.
- 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
- $125.00
- Reduced Price
- $75.00
- Locality
- Bombay, Maharashta, India
- Formula
- Ca2Fe2+Fe3+Si5O14(OH)
- Size
- 6 x 2.5 x 2.5 cm - Sm Cabinet
Gorgeous, large, Babingtonite crystal to a whopping 1.7cm on spheroidal Prehnite with Quartz crystals.
- Availability
- Sold
- Locality
- Iron mine, Kovdor Massif, Kola Peninsula, Russia
- Formula
- Na2Mg5(PO4)4·7H2O
- Size
- 1 x 1 x 0.3 cm - Thumbnail
- Tagged
- phosphate
Honey yellow platy crystals in aggregates.
- Availability
- Sold
- Locality
- Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil
- Formula
- Fe2+Fe3+2(PO4)2(OH)2
- Size
- 6 x 5.5 x 3 cm - Sm Cabinet
- Tagged
- phosphate, pegmatite mineral
- Special Info
- Type Locality
Dull black thick tabular crystals to 1mm with pink Hureaulite and perhaps light brown Reddingite.
- Availability
- Sold
- Locality
- Yukspor Mt, Khibiny Massif, Kola Peninsula, Russia
- Formula
- Na3(BaK)Ti3(Si2O7)2O2(OH)2
- Size
- 3 x 3 x 3 cm - Thumbnail
Flashy, vitreous cleaveable mass.