Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Mineral
Browse metamorphic mineral specimens identified by the Rock Identifier community.
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Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Chalcopyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
mineral
Quartzite Pebble
Metamorphic Quartz-rich Rock (SiO2)
metamorphic
Clay Brick
Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)
metamorphic (man-made/anthropogenic)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
mineral
Biotite Schist with Garnet
Garnet-Biotite Schist
metamorphic
Gneiss (specifically a weathered or stream-worn specimen)
Gneiss (Foliated Metamorphic Rock)
metamorphic
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
metamorphic
Gneiss
Gneiss
metamorphic
Garnet
Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3
mineral
Sapphire
Corundum (Al2O3)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz River Cobble
Silicon Dioxide (SiO2)
Mineral (Primary constituent)
Quartz Crystal (specifically Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Diamond Drill Core (Greenschist and Quartzite)
Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)
metamorphic
Quartz / Quartzite Pebble
Silicon Dioxide (SiO2)
metamorphic
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Mica Schist
Muscovite/Biotite Schist
metamorphic
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
gemstone
Ruby in Kyanite
Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)
metamorphic
Adventurine (Green)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Blue Quartzite (Blue Aventurine / Dumortierite Quartz)
Quartzite with inclusions (SiO2 with AlAl4BSi3O18)
metamorphic
Gneiss
Gneiss
metamorphic
Labradorite
(Ca, Na)(Al, Si)4O8
mineral
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Arsenopyrite
Arsenopyrite (FeAsS)
mineral
Black Sand (Magnetite Sand)
Magnetite-rich Placers (Fe3O4)
sedimentary
Quartzite (Coldwater or Druzy Quartz over Quartzite)
SiO2 (Silicon Dioxide)
metamorphic
Wishing Stone (Gneiss or Basalt with Quartz Vein)
Gneiss or Metabasalt (with a Quartz or Calcite intrusion)
metamorphic
Granite Gneiss with Garnet
Garnetiferous Gneiss
metamorphic
Greenstone
Greenschist / Greenstone (contains epidote, chlorite, and actinolite)
metamorphic
Greenschist
Greenschist (Chlorite Schist)
metamorphic
Banded Gneiss with Quartz Vein
Gneiss containing SiO2 (Quartz) intrusion
metamorphic
Magnetite with Pyroxene
Magnetite (Fe3O4) in Mafic Igneous Matrix
mineral/igneous