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
- 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
- El Guanaco mine, Santa Catalina, Antofagasta, Chile
- Formula
- Cu3(AsO4)2
- Size
- Thumbnail 3x2.5x1cm
- Tagged
- arsenate , copper
Rich specimen loaded with hundreds of dark green micro crystals with blue Lavendulan. Lammerite is rare and occurs at only seven deposits around the world.
