Tiger's Eye (Mineral Collection)
Tiger's Eye (SiO2 with crocidolite inclusions)
Category
Browse mineral health specimens identified by the Rock Identifier community.
Tiger's Eye (Mineral Collection)
Tiger's Eye (SiO2 with crocidolite inclusions)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Turquenite (Dyed Howlite)
Dyed Ca2B5SiO9(OH)5 (Calcium Borosilicate Hydroxide)
Quartz Geode with Calcite
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)
Quartz with Iron Oxide
Silicon Dioxide (SiO2) with Fe2O3 inclusions
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Blue Sapphire (likely costume glass imitation)
Corundum (Al2O3) with iron/titanium impurities
Selenite / Gypsum
Gypsum (CaSO4·2H2O)
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Concretion with Geode Cavity
Ferruginous Sandstone Concretion with Quartz Center
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Turquoise (possible Dyed Howlite or Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Turquoise)
Ferruginous Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Red Sandstone (Iron-Rich)
Arenite (Fe2O3)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Azurite with Malachite and Limonite
Azurite Cu3(CO3)2(OH)2 / Malachite Cu2CO3(OH)2
Red Sandstone
Arenite (Ferruginous Sandstone)
Red Sandstone (with possible iron oxide staining)
Sandstone (primarily Quartz with Hematite/Goethite cement)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Limonite
Limonite (Hydrous iron oxides, FeO(OH)·nH2O)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
Turquoise
Hydrate phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
Red Sandstone
Arenite (with Iron Oxide cement)
Sandstone with Iron Oxide (Limonite/Hematite)
Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)
Moonstone
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
Milky Quartz
Silicon Dioxide (SiO2)
Basalt with Mineral Vein (Cobble)
Basalt (with likely Quartz/Calcite vein)
Chrysocolla in Cuprite (Sonoran Sunrise)
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O) (Chrysocolla) and Cu2O (Cuprite)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of Iron Oxide)
Sandstone (Quartzite texture)
Clastic sedimentary rock (primarily SiO2)
Dalmatian Stone
Peralkaline rhyolite
Hematite
Iron(III) oxide (Fe2O3)
Lepidolite with Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Lapis Lazuli
Lapis Lazuli (A complex rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Basalt with Caliche Crust
Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating
Sandstone (likely Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and organic impurities