Garnet (likely Almandine or Pyrope)
Garnet Group, Nesosilicates (Complex chemistry, e.g., Almandine: Fe3Al2Si3O12)
mineral
Category
Mineral (Found In Igneous And Metamorphic Rocks)
Browse mineral (found in igneous and metamorphic rocks) specimens identified by the Rock Identifier community.
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Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
mineral
Blue Sapphire
Corundum (Al2O3)
mineral
Agate
Silicon Dioxide (SiO2)
sedimentary
Plagioclase Feldspar
Plagioclase (NaAlSi3O8 - CaAl2Si2O8)
mineral
Pink Sapphire
Corundum (Al2O3 with chromium and iron traces)
gemstone
Pyrite (Cube variety)
Iron Sulfide (FeS2)
mineral
Blue Sapphire
Corundum (Al2O3)
mineral
Black Tourmaline (Tumbled)
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)
mineral
Blue Star Sapphire
Corundum (Al2O3)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Gray/Smoky Variety)
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Gneiss
Granitic Gneiss
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Likely milky quartz with iron-oxide inclusions
Quartz, silicon dioxide (SiO₂)
mineral
Beryl (Variety Mix)
Be3Al2(Si6O18)
Mineral
Microcline Feldspar (Amazonite or White Feldspar)
KAlSi3O8
mineral
Biotite Mica
K(Mg, Fe)3(AlSi3O10)(F, OH)2
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Chalcedony (SiO2)
gemstone
Biotite (Black Mica)
Biotite (K(Mg,Fe)3AlSi3O10(OH)2)
mineral
Biotite on Quartz Matrix
Biotite - K(Mg,Fe)3(AlSi3O10)(OH,F)2 with Quartz (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite / Lodestone
Magnetite (Fe3O4)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Banded Gneiss
Metamorphic Gneiss
metamorphic
Pyrite (on the right) and Magnetite or Hematite (on the left)
Iron Sulfide (FeS2) and Iron Oxide (Fe3O4 or Fe2O3)
mineral
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sunstone
(Ca,Na)((Al,Si)2Si2)O8 (Plagioclase Feldspar)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Milky Quartz
Silicon dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Tumbled milky quartz
Quartz (SiO₂), likely massive milky quartz
mineral
Black Agate
Silicon Dioxide (SiO2) with carbon/iron inclusions
sedimentary
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral