Properties & Information
Orthoceras
OrthocerasSCIENCE / MINERALOGYOrthoceras is a natural mineral, rock, fossil, or trade material recognized in the crystal and lapidary market. Its exact mineralogical identity is best described from verified composition rather...
Orthoceras
OrthocerasSCIENCE / MINERALOGYOrthoceras is a natural mineral, rock, fossil, or trade material recognized in the crystal and lapidary market. Its exact mineralogical identity is best described from verified composition rather...
Orpiment
OrpimentSCIENCE / MINERALOGYOrpiment is arsenic trisulfide, As₂S₃, and forms bright lemon-yellow to orange foliated, earthy, or prismatic material. It crystallizes in the monoclinic system and has perfect cleavage.GEOLOGY & FORMATIONIt...
Orpiment
OrpimentSCIENCE / MINERALOGYOrpiment is arsenic trisulfide, As₂S₃, and forms bright lemon-yellow to orange foliated, earthy, or prismatic material. It crystallizes in the monoclinic system and has perfect cleavage.GEOLOGY & FORMATIONIt...
Orchid Calcite
Orchid CalciteSCIENCE / MINERALOGYOrchid Calcite is a color or growth-habit variety of calcite, calcium carbonate (CaCO₃). Calcite crystallizes in the trigonal system, has perfect rhombohedral cleavage, and reacts readily with...
Orchid Calcite
Orchid CalciteSCIENCE / MINERALOGYOrchid Calcite is a color or growth-habit variety of calcite, calcium carbonate (CaCO₃). Calcite crystallizes in the trigonal system, has perfect rhombohedral cleavage, and reacts readily with...
Orca Agate
Orca AgateSCIENCE / MINERALOGYOrca Agate is a trade or locality variety of agate/chalcedony, composed mainly of microcrystalline quartz (SiO₂). Its distinctive color, banding, plumes, or inclusions come from repeated silica...
Orca Agate
Orca AgateSCIENCE / MINERALOGYOrca Agate is a trade or locality variety of agate/chalcedony, composed mainly of microcrystalline quartz (SiO₂). Its distinctive color, banding, plumes, or inclusions come from repeated silica...
Orange Selenite
Orange SeleniteSCIENCE / MINERALOGYOrange Selenite is a color or growth variety of gypsum, CaSO₄·2H₂O. Gypsum crystallizes in the monoclinic system and is exceptionally soft with perfect cleavage.GEOLOGY & FORMATIONIt forms...
Orange Selenite
Orange SeleniteSCIENCE / MINERALOGYOrange Selenite is a color or growth variety of gypsum, CaSO₄·2H₂O. Gypsum crystallizes in the monoclinic system and is exceptionally soft with perfect cleavage.GEOLOGY & FORMATIONIt forms...
Orange Kyanite
Orange KyaniteSCIENCE / MINERALOGYOrange Kyanite is a natural mineral, rock, fossil, or trade material recognized in the crystal and lapidary market. Its exact mineralogical identity is best described from verified...
Orange Kyanite
Orange KyaniteSCIENCE / MINERALOGYOrange Kyanite is a natural mineral, rock, fossil, or trade material recognized in the crystal and lapidary market. Its exact mineralogical identity is best described from verified...