Rare Mineral Specimens - search page
- Availability
- Available
- Price
- $60.00
- Reduced Price
- $30.00
- Locality
- Rawhide mine, Mohave Co., Arizona, United States
- Formula
- PbSiO3
- Size
- 3.5 x 2.5 x 3 cm - Miniature
Pearly white micro crystals and rounded spheres.
SOLD
- Availability
- Sold
- Locality
- Helen Beryl mine, Custer Co., South Dakota, United States
- Formula
- (Na,Ca)2(Mn,Mg,Fe2+)(Fe3+,Mn2+)2(PO4)3
- Size
- 7.5 x 5 x 3 cm - Sm Cabinet
- Tagged
- phosphate, pegmatite mineral
Dark green granular primary phosphate,
- 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
- Available
- Price
- $30.00
- Locality
- Hingston Down quarry, Gunnislake, Cornwall, England
- Formula
- CuFe3+2(AsO4)2(OH)2ยท4H2O
- Size
- 1.5 x 0.7 x 0.8 cm - Thumbnail
- Tagged
- arsenate, copper
- Special Info
- Type Locality
Small but excellent specimen from the type locality.
- Availability
- Available
- Price
- $25.00
- Locality
- Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway
- Formula
- K2NaFe2+7Ti2(Si4O12)2O2(OH)4F
- Size
- 5 x 4 x 3.5 cm - Miniature
Reddish brony balded crystals to 3cm in Quartz.
SOLD
- 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.
