Granite Pebble
Intrusive Igneous Rock
igneous
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Quartz with Sulfide Inclusions
Silicon Dioxide (SiO2) with metallic mineral inclusions
mineral
Gneiss and Igneous Rock Collection
Foliated Metamorphic Rock (Gneiss) / Igneous Rocks
metamorphic
Fossilized marine shell fragment
Likely a bivalve or gastropod shell preserved as calcite (CaCO₃)
fossil
Coarse-grained dark igneous rock, probably diorite
Diorite (tentative; exact identification requires closer examination)
igneous
Raw Topaz (or Smoky Quartz)
Al2SiO4(F,OH)2 / Silicon Dioxide (SiO2)
mineral
Feldspar (Plagioclase / Potassium Feldspar)
Feldspar Group (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
Granite
Intrusive Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Fluorite
Calcium Fluoride (CaF2)
mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Green Tourmaline (Verdelite) / Actinolite
Tourmaline group: Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4 / Actinolite: Ca2(Mg,Fe)5Si8O22(OH)2
mineral
Agate
Chalcedony (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Mica-rich granite or pegmatite fragment
Feldspar–quartz rock with dark mica, likely biotite; exact identification is uncertain from the photo
igneous
Feldspar
Aluminosilicate (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite and Porphyry Pebbles
Intrusive Igneous Rock
igneous
Granite
Phaneritic Igneous Rock
igneous
Pegmatite
Igneous Pegmatite
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sugilite
KNa2(Fe,Mn,Al)2Li3Si12O30
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Goethite
mineral
Polished Hematite Tower
Hematite (Fe2O3)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral