Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Granite
Intrusive Igneous Rock
igneous
Quartz pebble
Silicon dioxide (SiO2)
mineral
Granite
Intrusive igneous rock
igneous
Obsidian
Volcanic glass
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive igneous rock
igneous
Biotite Mica Schist
Metamorphic Rock containing Biotite K(Mg,Fe)3AlSi3O10(OH)2
metamorphic
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Likely weathered igneous rock fragments
Indeterminate; possibly basaltic or granitic rock with quartz, feldspar, and dark mafic minerals
igneous
Quartz with Feldspar Veining
Silica (SiO2) with Potassium Feldspar (KAlSi3O8) inclusions
mineral
Granite
Intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Basalt with Feldspar Phenocrysts
Extrusive igneous rock
igneous
Porphyritic Basalt
Extrusive Igneous Rock
igneous
Porphyritic Basalt
Extrusive igneous rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Red Granite
Felsic intrusive igneous rock
igneous
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Vesicular-Amygdaloidal Basalt (Mafic Extrusive)
igneous
Granite
Intrusive igneous felsic rock
igneous
Blue Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Polished blue banded stone, likely sodalite or blue apatite
Probable sodalite, Na₈(Al₆Si₆O₂₄)Cl₂; possibly blue apatite, Ca₅(PO₄)₃(F,Cl,OH)
mineral
Quartz in Host Rock
Silicon Dioxide (SiO2) in Rhyolite or Granite matrix
igneous
Granite
Intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Fluorite
Calcium Fluoride (CaF2)
mineral
Pink Granite with Epidote
Plutonic Igneous Rock
igneous
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
gemstone
Quartz Cluster (Likely Ferruginous)
Silicon Dioxide (SiO2)
mineral