Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
mineral
Category
Industrial Byproduct (Often Confused With Igneous Rocks Or Meteorites)
Browse industrial byproduct (often confused with igneous rocks or meteorites) specimens identified by the Rock Identifier community.
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Garnet Schist
Garnetiferous Micaceous Schist
metamorphic
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Garnet in Matrix (likely Almandine Garnet)
Almandine (Fe3Al2(SiO4)3)
metamorphic
Actinolite
Ca2(Mg,Fe)5Si8O22(OH)2
mineral
Jade (Jadeite/Nephrite)
NaAlSi2O6 (Jadeite) / Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite)
metamorphic
Quartz Vein in Rhyolite
Silicon Dioxide (SiO2) in extrusive igneous rock
igneous
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
Mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Quartz Vein in Host Rock
Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)
metamorphic
White Topaz
Al2SiO4(F,OH)2
mineral
Basalt with Quartz/Calcite Veins
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Pyrite
Iron Disulfide (FeS2)
mineral
Gold in Quartz
Hydrothermal Quartz with Native Gold (SiO2 with Au)
mineral
Serpentine (Nephrite-like River Cobble)
Serpentinite (Hydrous Magnesium Iron Silicate)
metamorphic
Pegmatite (Granitic Pegmatite with Quartz, Feldspar, and Mica)
Granitic Pegmatite
igneous
Biotite / Black Mica
K(Mg,Fe)3(AlSi3O10)(F,OH)2
mineral
Banded Agate (Quartz)
Agate (Silicon Dioxide, SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Pumice
Vesicular Rhyolite / Pumice
igneous
Green Moonstone (Garnierite)
Nickel-bearing Magnesium Silicate (often a mix of Serpentine and Talc/Chlorite groups)
mineral
Ruby
Corundum (Al₂O₃) with Chromium (Cr)
Mineral (gemstone)
Yellow Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
mineral
Agate (Chert/Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Basalt
Basalt (Aphanitic Mafic Volcanic Rock)
igneous
Magnetite
Magnetite (Fe3O4)
mineral
Vesicular Basalt (Lava Rock)
Basalt (Vesicular Variety)
igneous
Quartz (Yellow/Orange variety)
Silicon Dioxide (SiO2)
mineral
Agate in Matrix
Silicon Dioxide (SiO2) within host rock
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral