Properties & Information
Auralite-23
Auralite-23SCIENCE / MINERALOGYAuralite-23 is a trade name for amethyst-bearing quartz material from the Thunder Bay region of Ontario, Canada, commonly showing red hematite-rich caps or inclusions. Claims that every specimen...
Auralite-23
Auralite-23SCIENCE / MINERALOGYAuralite-23 is a trade name for amethyst-bearing quartz material from the Thunder Bay region of Ontario, Canada, commonly showing red hematite-rich caps or inclusions. Claims that every specimen...
Atlantisite
AtlantisiteSCIENCE / MINERALOGYAtlantisite is a trade name for an ornamental rock composed mainly of green serpentine containing purple stichtite, a hydrated chromium-magnesium carbonate mineral. It is therefore a mixed rock...
Atlantisite
AtlantisiteSCIENCE / MINERALOGYAtlantisite is a trade name for an ornamental rock composed mainly of green serpentine containing purple stichtite, a hydrated chromium-magnesium carbonate mineral. It is therefore a mixed rock...
Astrophyllite
AstrophylliteSCIENCE / MINERALOGYAstrophyllite is a rare potassium-sodium iron-titanium silicate mineral with a complex chemistry and typically bronzy, golden, copper-brown, or metallic bladed crystals. It crystallizes in the triclinic system and...
Astrophyllite
AstrophylliteSCIENCE / MINERALOGYAstrophyllite is a rare potassium-sodium iron-titanium silicate mineral with a complex chemistry and typically bronzy, golden, copper-brown, or metallic bladed crystals. It crystallizes in the triclinic system and...
Asphaltite (Gilsonite®)
Asphaltite (Gilsonite®)SCIENCE / MINERALOGYGilsonite is a naturally occurring solid bitumen/asphaltite—an organic geological material derived from petroleum rather than a crystalline mineral. It is black, lightweight, brittle, and typically shows a...
Asphaltite (Gilsonite®)
Asphaltite (Gilsonite®)SCIENCE / MINERALOGYGilsonite is a naturally occurring solid bitumen/asphaltite—an organic geological material derived from petroleum rather than a crystalline mineral. It is black, lightweight, brittle, and typically shows a...
Arsenopyrite
ArsenopyriteSCIENCE / MINERALOGYArsenopyrite is an iron arsenic sulfide mineral with the formula FeAsS. It crystallizes in the monoclinic system and commonly forms silver-white to steel-gray prismatic, striated, or massive crystals...
Arsenopyrite
ArsenopyriteSCIENCE / MINERALOGYArsenopyrite is an iron arsenic sulfide mineral with the formula FeAsS. It crystallizes in the monoclinic system and commonly forms silver-white to steel-gray prismatic, striated, or massive crystals...
Arizona Pietersite
Arizona PietersiteSCIENCE / MINERALOGYArizona Pietersite is a trade name and should not automatically be equated with true Namibian or Chinese pietersite. Gemological testing published by GIA on material sold as...
Arizona Pietersite
Arizona PietersiteSCIENCE / MINERALOGYArizona Pietersite is a trade name and should not automatically be equated with true Namibian or Chinese pietersite. Gemological testing published by GIA on material sold as...