Quartz River Rock
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic And Igneous Rocks
Browse metamorphic and igneous rocks specimens identified by the Rock Identifier community.
Learn about Metamorphic And Igneous Rocks in the encyclopedia
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Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Blue Apatite
Fluorapatite / Chlorapatite / Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Quartz (Milky Quartz / Quartz Crystal)
Silicon Dioxide (SiO2)
mineral
Serpentine / Serpentinite
Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Quartz (Golden Quartz / Citrine / Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Smoky Quartz
Silicon dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium impurities
mineral
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Citrine
SiO2 (Silicon Dioxide)
mineral
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
mineral
Quartz Sand Gravel
Silicon Dioxide (SiO2)
sedimentary
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Fluorapatite / Ca5(PO4)3F
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Greenschist
Greenschist facies metamorphic rock
metamorphic
Pyrite (Fools Gold)
Iron Sulfide (FeS2)
mineral
Biotite Mica
K(Mg, Fe)3AlSi3O10(F, OH)2
mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Foliated Metamorphic Rock (likely Gneiss or Schist)
Gneissic Metamorphic Rock
metamorphic
Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock)
Epidotized Metamorphic/Igneous Rock
metamorphic
Mica Schist
Schist (Muscovite/Biotite Schist)
metamorphic
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Labradorite
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Smoky Quartz)
Silicon Dioxide (SiO2)
mineral