Properties & Information

Zebra Serpentine (Green Tiger Eye)

Zebra Serpentine (Green Tiger Eye)

Zebra Serpentine (Green Tiger Eye)SCIENCE / MINERALOGYZebra Serpentine is a trade name for striped green serpentine-rich rock, sometimes marketed as Green Tiger Eye despite lacking the classic quartz-fiber chatoyancy of...

Zebra Serpentine (Green Tiger Eye)

Zebra Serpentine (Green Tiger Eye)SCIENCE / MINERALOGYZebra Serpentine is a trade name for striped green serpentine-rich rock, sometimes marketed as Green Tiger Eye despite lacking the classic quartz-fiber chatoyancy of...

Zebra Moonstone

Zebra Moonstone

Zebra MoonstoneSCIENCE / MINERALOGYZebra Moonstone is a commercial feldspar gem material showing adularescence or related optical sheen. The effect results from microscopic feldspar intergrowths or exsolution lamellae rather than a...

Zebra Moonstone

Zebra MoonstoneSCIENCE / MINERALOGYZebra Moonstone is a commercial feldspar gem material showing adularescence or related optical sheen. The effect results from microscopic feldspar intergrowths or exsolution lamellae rather than a...

Zebra Jasper

Zebra Jasper

Zebra JasperSCIENCE / MINERALOGYZebra Jasper is a commercial jasper name for opaque to translucent silica-rich rock composed largely of microcrystalline quartz/chalcedony with iron oxides, clays, feldspar, or other inclusions. It...

Zebra Jasper

Zebra JasperSCIENCE / MINERALOGYZebra Jasper is a commercial jasper name for opaque to translucent silica-rich rock composed largely of microcrystalline quartz/chalcedony with iron oxides, clays, feldspar, or other inclusions. It...

Zebra Calcite

Zebra Calcite

Zebra CalciteSCIENCE / MINERALOGYZebra 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...

Zebra Calcite

Zebra CalciteSCIENCE / MINERALOGYZebra 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...

Yttrium Fluorite

Yttrium Fluorite

Yttrium FluoriteSCIENCE / MINERALOGYYttrium Fluorite is a color or texture variety of fluorite, calcium fluoride (CaF₂). Fluorite crystallizes in the cubic system, has perfect octahedral cleavage, and defines Mohs hardness...

Yttrium Fluorite

Yttrium FluoriteSCIENCE / MINERALOGYYttrium Fluorite is a color or texture variety of fluorite, calcium fluoride (CaF₂). Fluorite crystallizes in the cubic system, has perfect octahedral cleavage, and defines Mohs hardness...

Yellow Opal

Yellow Opal

Yellow OpalSCIENCE / MINERALOGYYellow Opal is a trade or color variety of opal, hydrated amorphous silica commonly written SiO₂·nH₂O. Opal is a mineraloid rather than a crystalline mineral; precious varieties...

Yellow Opal

Yellow OpalSCIENCE / MINERALOGYYellow Opal is a trade or color variety of opal, hydrated amorphous silica commonly written SiO₂·nH₂O. Opal is a mineraloid rather than a crystalline mineral; precious varieties...