Rare Mineral Specimens - search page
- Availability
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- K2Cu5Cl8(OH)4·H2O
- Size
- 4 x 2 x 1.3 cm - Miniature
- Special Info
- Type Locality
Powdery green crystals in vuggy scoria.
A relatively new mineral from 2013 described by Dr. Igor Pekov and others in 2005. The specimen is from Pekov and can be considered "Author's MatriaL".
the exact locality is: Yadovitaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Krai, Russia
- 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
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- Na2Mg2Fe(AsO4)3
- Size
- 3.5 x 3 x 2.5 cm - Miniature
- Tagged
- arsenate
Micro crystals of amber colored blades of Badalovite from 0.5 to 2mm in sprays with total coverage.
The exact locality is: Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
- Availability
- Available
- Price
- $125.00
- Reduced Price
- $75.00
- Locality
- Parker Shaft, Franklin, Sussex Co., New Jersey, United States
- Formula
- Pb8Mn(Si2O7)3
- Size
- Micromount
Pearly, pinkish plates of very rare Barysilite to 3mm on a 1.5 x 1 x 1cm matrix. It is mounted in a micromount box.
- Availability
- Sold
- Locality
- Parker Shaft, Franklin, Sussex Co., New Jersey, United States
- Formula
- Pb8Mn(Si2O7)3
- Size
- 1 x 0.7 x 0.3 cm - Thumbnail
Lilac, platy Barysilite with golassy light green Willemite. It is an excellent specimen, for this fairly rare mineral usually coveted by Franklin collectors.
- Availability
- Sold
- Locality
- Outlaw mine, Nye Co., Nevada, United States
- Formula
- Ag3Bi7S12
- Size
- 3.8 x 3 x 1.2 cm - Miniature
- Tagged
- sulfide, silver
Silver, metallic masses to 0.8mm in Quartz
