Green Fluorite
Calcium Fluoride (CaF2)
mineral
Category
Mineral And Organic Gemstone
Browse mineral and organic gemstone specimens identified by the Rock Identifier community.
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian
Obsidian (Amorphous volcanic glass, predominantly SiO2)
igneous
Quartzite with Quartz Vein
Metamorphosed Quartz-rich Arenite (SiO2)
metamorphic
Jasper
Silicon Dioxide (SiO2)
sedimentary
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Charoite
Charoite (K(Ca,Na)2Si4O10(OH,F)·nH2O)
metamorphic
Turquoise
Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
mineral
Chert (Flint Pebbles)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Milky Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)
Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)
mineral
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Diamond in Kimberlite
Diamond (C in Kimberlite Matrix)
igneous
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)
metamorphic
Ruby in Zoisite (Anyolite)
Corundum var. Ruby in Zoisite (Al2O3 + (Ca2Al3(SiO4)3(OH)))
metamorphic
Staurolite
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Fluorite (Purple/Blue variety)
Calcium Fluoride (CaF2)
mineral
Prasiolite
Silicon Dioxide (SiO2) with iron impurities
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon dioxide with iron impurities (SiO2)
mineral
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of Iron Oxide)
Metamorphic
Ammolite
Biogenic gemstone (Aragonite, CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
mineral
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium) CuAl6(PO4)4(OH)8·4H2O
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Amazonite
Amazonite (Microcline) - K(AlSi3O8)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral