Rare Mineral Specimens - search page
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Tsumeb mine, Tsumeb, Namibia
- Formula
- PbFe3+3(AsO4)(SO4)(OH)6
- Size
- 2.5 x 2 x 1.5 cm - Thumbnail
- Tagged
- arsenate
NOt actually sold but returned to Amo
Interesting Amber brown to brownish red tabular, pseudo-hexagonal crystals to 2mm in clusters.
- Availability
- Available
- Price
- $1,550.00
- Reduced Price
- $1,125.00
- Locality
- Amelia mine, Boleo, Santa Rosalia, Baja California, Mexico
- Formula
- KAg9Pb26Cu24Cl62(OH)48
- Size
- 3.5 x 3.5 x 2 cm - Miniature
- Tagged
- melange, copper
This is one of the bigger Boleite crystals you will ever see. IT is a whopping 1cm on edge with a number of smaller crystals. They don't get much bigger than this according to the Mineraolgical Record: Special Issue #1 (Mexico) January-February 1998 Volume 29 Number 1, page 38 under the description of Boleite the author states that "Cubic crystals of millimetric size (up to 5 mm) have been found in abundance, while those approaching a centimeter are very rare. Crystals of larger size (the record being 2.5 cm) are highly exceptional.....
Though the one corner has a small ding the price has been adjusted accordingly. Large crystals of Boleite like this are seldom seen on the market and one little ding should not distract from its overall beauty. Must be insured and extra shipping will apply. Ex Carter Rich (see Prov. tab).
- Availability
- Available
- Price
- $155.00
- Reduced Price
- $85.00
- Locality
- Långban, Filipstad, Värmland, Sweden
- Formula
- Ca2Mn2+(AsO4)2ยท2H2O
- Size
- 7 x 3.5 x 3 cm - Sm Cabinet
- Tagged
- arsenate
Superb specimen with colorless platy crystals of Brandtite crystals to 1mm at the black arrow. I do not know what the hemispherical, colorless crystals are...???
See prov. tab for label: Curtic Brandt ...
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Cobalt-Gowganda dist., Ontario, Canada
- Formula
- NiSb
- Size
- 7.5 x 4.5 x 3.5 cm - Sm Cabinet
A rich mass of Breithauptite from the Cobalt district of Ontario showing veinlets and rosette-like growth habits.
- Availability
- Sold
- Locality
- Bob Montgomery claims, Granite Gap, Hidalgo Co., New Mexico, United States
- Formula
- AgBr
- Size
- 14 x 9 x 6 cm - Cabinet
- Tagged
- silver
Large specimen with a coating of Cerussite and sprinkles of tiny Bromargyrite all over the specimen. The second photo shows white, thin tabular rosettes of Baryte.
- Availability
- Available
- Price
- $195.00
- Reduced Price
- $75.00
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- NaCaMg3(AsO4)3
- Size
- 6 x 4 x 3.5 cm - Sm Cabinet
- Tagged
- arsenate
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
- Special Info
- Type & Only Locality
- Special Info
- Author's Material
Calciojohillerite is a greenish to yellowish to almost colorless well-shaped, terminated crystals (about 1 mm) combined in clusters / crusts on basalt scoria altered by fumarolic gas. The specimen is very rich. It is one of the few study specimens from Igor Pekov's collection used to characterize the new mineral. It is not yet published but was approved in 2016.
A more detailed locality is: Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia.
