Rare Mineral Specimens - search page
- Availability
- Sold
- Locality
- Minerva #1 mine, Hardin Co., Illinois, United States
- Formula
- BaCa(CO3)2
- Size
- 2 x 1.5 x 1 cm - Thumbnail
- Tagged
- carbonate
White rice-shaped micro crystales to about 1mm. Alstonite is a rare barium carbonite found in only two localities in the USA, and a handful across the world.
- Availability
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- K3Cu2+3AlO2(SO4)4
- Size
- 2 x 1.8 x 2 cm - Thumbnail
- Tagged
- copper
- Special Info
- Type Locality
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
Tiny acicular green crystals throughout vuggy matrix. Rich. Dr. Igor Pekov specimen.
- Availability
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- Mg2(AsO4)F
- Size
- 2.5 x 1.5 x 1.5 cm - Thumbnail
- Tagged
- arsenate
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
- Special Info
- Type & Only Locality
- Special Info
- Author's Material
Dr. Igor Pekov published Arsenowagnerite as a new IMA mineral. This specimen was used to help described the new species. This is the only known locality. The mineral forms translucent, glassy light green crystals with Hematite in the fumarolic environmant of the Tolbachik volcano. On this specimen the crystals are about 0.75mm and were hard to photograph.
A more accuratel locality description is: Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Krai, Russia. (Mindat).
- Availability
- Sold
- Locality
- Khibiny Massif, Kola Peninsula, Russia
- Formula
- K2NaFe2+7Ti2(Si4O12)2O2(OH)4F
- Size
- 6 x 3.5 x 3 cm - Sm Cabinet
Coppery red long bladed crystals to over 1cm in syenite matrix.
- Availability
- Sold
- Locality
- Aurora mine, Hamilton, White Pine Co., Nevada, United States
- Formula
- (Mn2+,Ag,Ca)Mn4+3O7·3H2O
- Size
- 6 x 3.5 x 3.5 cm - Sm Cabinet
- Tagged
- silver
Ugly mass of Calcite with included Aurorite and Pyrolusite. It's an old-timer from Minerals Unlimited with tag.
- Availability
- Sold
- Locality
- Rovnost mine, Jachymov, Erzgegirge, Bohemia, Czech Republic
- Formula
- Cu3(AsO4)2 · 8H2O
- Size
- 3 x 2 x 2 cm - Thumbnail
- Tagged
- arsenate, copper
- Special Info
- Type Locality
- Special Info
- EDS Confirmed
Babanekite is the copper member of the Vivianite group. It's fun to look at these minerals as they all look the same just different colors. Babanekite was described in 2012. The crystals on this specimen are less than 0.3mm and are pink, not green as you would think. It probably contains small amounts of cobalt. From Dr. Hyrsl Jaroslav's stock.
Somebody buy this, I'm tired of looking at it.
