Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
- Formula
- Na4K4Mn2+2Ti8O4(Si4O12)4(OH)4·10-12H2O
- Size
- Thumbnail 2.5x2.5x1cm
Bright orange prismatic crystals to 2mm in a 5mm vug. Gorgeous under scope.
- Availability
- Sold
- Locality
- Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
- Formula
- Na4K4Mn2+2Ti8O4(Si4O12)4(OH)4·10-12H2O
- Size
- Thumbnail 1.5x2x0.4cm
Vibrant orange prismatic crystals to 3mm. Not colorized!
- Availability
- Sold
- Locality
- Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
- Formula
- Na4K4Mn2+2Ti8O4(Si4O12)4(OH)4·10-12H2O
- Size
- Miniature 5x4x2.5cm
Rich specimen of Labuntsovite with a large group to 5mm and singles and sprays a bit smaller. Very nice, enjoyable specimen.
- Availability
- Sold
- Locality
- Mont Saint-Hilaire, Montérégie, Québec, Canada
- Formula
- Na4K4Mn2+2Ti8O4(Si4O12)4(OH)4·10-12H2O
- Size
- Thumbnail 2.3x1.7x0.5cm
Bright orange prismatic crystals to 1mm with excellent coverage. Labuntsovite is a fairly rare mineral.
- Availability
- Sold
- Locality
- La Fossa crater, Vulcano Island, Messina prov., Sicily, Italy
- Formula
- TlCl
- Size
- Thumbnail 2x2x1.5cm
- Special Info
- Radioactive!!
- Special Info
- Poisonous!!
- Special Info
- Type Locality
Lafossaite is a sublimation product of fumarolic gases at volcanoes such as this locality. It is a halide of Thallium and highly toxic and radioactive. The crystals occur as tiny tiny yellow cubes.
Note: Poisonous and soluble in water. Do not let your mineral buddy slip it in your drink.
Of special note: Thermessaite is very toxic and can kill you if eaten. It dissolves in water. So be aware of someone who wants you to look very close at their Thermessaite. As Google puts it:
"THALLIUM sulphate is a colourless, tasteless salt that you can dissolve in water and give to someone you wish to hurt or kill. It is not a perfect poison, but it comes close."
In other words: geologists, don't lick it.
- Availability
- Sold
- Locality
- Orijarvi, Kisko, Salo, Finland
- Formula
- Bi4Se3
- Size
- SmCabinet 6x4.5x4.5cm
- Special Info
- Type Locality
Very rich specimen with actual crystal grains to 2mm throughout the matrix. Excellent specimen of this rather rare bismuth selenide.
