











Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $35.00
- Locality
- Freiberg dist., Erzgebirge, Saxony, Germany
- Formula
- FeAsS
- Size
- 6 x 1.5 x 1.5 cm - Sm Cabinet
- Tagged
- sulfide
Two crystals, one to about 1cm, in old vial. Ex. A. E. Seaman.
- Availability
- Sold
- Locality
- Santa Eulalia, Chihuahua, Mexico
- Formula
- FeAsS
- Size
- 14 x 7 x 9.5 cm - Cabinet
Large cabinet specimen loaded with great crystals of Arsenopyrite, Sphalerite, and Quartz.
- 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
- Hurricane Mountain, Conway, Carroll Co., New Hampshire
- Formula
- K2NaFe2+7Ti2(Si4O12)2O2(OH)4F
- Size
- 2.8 x 1.6 x 0.3 cm - Thumbnail
Good locality specimen - rusty orange, tabular crystal.
- 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.
- 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.