Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
mineral
Category
Metamorphic (Pseudo Igneous)
Browse metamorphic (pseudo igneous) specimens identified by the Rock Identifier community.
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Blue Sapphire
Corundum (Al2O3 - Aluminum Oxide)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
igneous
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Ruby
Corundum (Aluminium Oxide with Chromium impurities, Al2O3:Cr)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Almandine Garnet
Almandite (Fe3Al2(SiO4)3)
Mineral
Ruby
Corundum (Al2O3 with Chromium trace)
mineral
Hematite
Hematite (Fe2O3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Ruby (Raw/Rough)
Corundum (Al2O3 with Chromium trace)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Chrome Diopside
Diopside (Magnesium Calcium Silicate) - CaMgSi2O6 + Cr
mineral
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, with varying amounts of Calcite, Pyrite, and Sodalite).
Mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral