Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Amethyst
Crystalline Quartz (SiO2 with iron impurities)
Fire Agate
Chalcedony (Silicon Dioxide, SiO2) with Limonite/Goethite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))
Specular Hematite (Specularite)
Hematite (Iron(III) oxide) - Fe2O3
Agate (Geode nodule fragment)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Dyed Pink Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Banded Calcite (Mexican Onyx)
Calcite (Calcium Carbonate, CaCO3)
Quartz River Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Chert/Chalcedony Variety)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz Pebble)
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO2) - Chalcedony containing Iron Oxide impurities
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz/Clear Quartz Cluster
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Goethite and related iron hydroxides (FeO(OH)·nH2O)
Chrysoberyl (Cyclic Twin)
Beryllium Aluminum Oxide (BeAl2O4)
Quartz (Smoky/Milky Pebble)
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Quartz (Silicon Dioxide with trace inclusions of dumortierite, Al7(BO3)(SiO4)3O3)
Green Calcite
Calcium Carbonate (CaCO3)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Rose Quartz
SiO2 (Silicon Dioxide with trace inclusions)
Gold Ore
Native Gold in Quartz (Au)
Muscovite Mica (with Quartz matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
Amazonite
Amazonite (K(AlSi3O8))
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
Pink Chalcedony
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Diamond
Carbon (C)
Fuchsite (Chrome Mica)
Cr-bearing Muscovite - K(Al,Cr)2(AlSi3O10)(OH)2
Chalcopyrite in Quartz (Gold Ore Matrix)
CuFeS2 (Chalcopyrite) with SiO2 (Quartz)
Pyrite
Iron Disulfide (FeS2)
Green Fluorite
Calcium Fluoride (CaF2)
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2