Rare Mineral Specimens - search page
- 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.
- 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.
SOLD
- Availability
- Sold
- Locality
- Bayan Obo deposit, Inner Mongolia, China
- Formula
- Ba4(Ti,Nb,W)8O16(SiO3)4Cl
- Size
- 4.5 x 3 x 1.5 cm - Miniature
Black massive Baotite.
SOLD
- Availability
- Sold
- Locality
- Mountain Pass mine, San Bernardino Co., California, United States
- Formula
- CeCO3F
- Size
- 3.5 x 2.5 x 1.2 cm - Miniature
- Tagged
- carbonate, REE mineral
Heavy crystalline mass of rare-earth mineral.
SOLD
- Availability
- Sold
- Locality
- Gem mine, San Benito Co., California, United States
- Formula
- BaTiSi3O9
- Size
- 4 x 2.5 x 2.5 cm - Miniature
Very good blue Benitoite crystals to 4mm.
