Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
metamorphic
Category
Igneous, Sedimentary, Metamorphic, Mineral
Browse igneous, sedimentary, metamorphic, mineral specimens identified by the Rock Identifier community.
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Banded Gneiss
Gneiss
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
mineral
Gneiss
Banded Metamorphic Rock (Gneiss)
metamorphic
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
mineral
Schist
Metamorphic Rock (Schist)
metamorphic
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Oyster shell fragment
Ostreidae shell; primarily calcite (CaCO₃)
fossil
Gneiss (Granitic Gneiss)
Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Small pale mineral fragment
Unidentified; possibly quartz, calcite, or feldspar
mineral
Hematite
Hematite (Fe2O3)
mineral
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Gneiss
Gneiss (foliated metamorphic rock)
metamorphic
Gneiss
Metamorphic Gneiss
metamorphic
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
River Pebble (Gneiss or Granite)
Metamorphic Rock (likely Gneiss or Granitic composition)
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss (with Quartzite layers)
Gneissic Metamorphic Rock
metamorphic