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
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Milky Quartz
Silicon dioxide (SiO2)
mineral
Quartz (Milky/Smoky mix)
Silicon Dioxide (SiO2)
mineral
Muscovite
KAl2(AlSi3O10)(OH)2
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Granite
Intrusive Igneous Rock
igneous
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)
mineral
Gabbro
Gabbro
igneous
Blue Sapphire
Corundum (Al2O3)
gemstone
Likely feldspar (rough specimen)
Probably potassium feldspar, KAlSi₃O₈; exact identification is uncertain from the image
mineral
Pegmatite with Tourmaline
Igneous Pegmatite (Quartz-Feldspar matrix with Schorl Tourmaline)
igneous
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Labradorite-bearing rough stone (tentative)
Labradorite, a calcium-rich plagioclase feldspar; possible mafic host rock
mineral
Tumbled quartz pebble (probable milky quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Beaded gemstone bracelets, likely lavender jade/quartz and blue-gray sodalite or dumortierite
Probable jadeite/nephrite or lavender quartz; blue beads may be sodalite (Na8(Al6Si6O24)Cl2) or dumortierite
mineral
Polished labradorite pendant
Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Epidote
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Blue sodalite-rich rock (likely sodalite syenite)
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, in a sodalite-bearing igneous rock
igneous
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Granite Drill Core
Intrusive Igneous Rock
igneous
Granite Cobble
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Vesicular Basalt or Porphyritic Rhyolite
Extrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Granite (plutonic intrusive rock rich in quartz and feldspar)
igneous
Quartz-veined Diabase or Basalt Pebble
Diabase or Basalt with Hydrothermal Quartz Veins (SiO2)
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Varieties including Rose Quartz and Citrine)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral