Magnetite / Hematite (Iron Ore Pebble)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral
Category
Igneous, Sedimentary, Metamorphic
Browse igneous, sedimentary, metamorphic specimens identified by the Rock Identifier community.
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Green Aventurine (Tumbled)
Silicon Dioxide (Quartz with inclusions, SiO2)
mineral
Aventurine
Quartz (SiO2) with Fuchsite inclusions
mineral
Quartz (Iron-Stained / Yellow Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Rose Quartz)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Sunstone (Feldspar)
(Ca,Na)((Al,Si)2Si2O8) with inclusions of Hematite or Goethite
mineral
Moonstone (Tumbled)
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
mineral
Ruby (varietal of Corundum)
Corundum (Al2O3:Cr)
gemstone
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Citrine
Citrine (Silicon Dioxide, SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Mica (Muscovite) in Granite
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Citrine Quartz / Yellow Quartz Pebbles
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Granitoid (Granite/Gneiss mix)
Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)
igneous/metamorphic
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Muscovite Mica in Quartz
Potassium Aluminum Silicate Hydroxide (KAl2(AlSi3O10)(OH)2) and Silicon Dioxide (SiO2)
metamorphic
Chalcopyrite (Peacock Ore)
Copper Iron Sulfide (CuFeS2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet (Almandine)
Almandine Fe3Al2(SiO4)3
mineral
Rough Quartz
Silicon Dioxide (SiO2)
mineral
Citrine (Heat-treated Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
mineral
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Biotite on Quartz
Biotite Mica (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Quartz / Iron-Stained Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions/staining
mineral
Moonstone (specifically White Moonstone/Adularia)
Potassium aluminum silicate ((K,Na)AlSi3O8)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Garnet/Hematite and Basalt
Silicon Dioxide (SiO2) with Almandine (Fe3Al2Si3O12) and Basalt
mineral
Citrine
Silicon Dioxide (SiO₂)
mineral
Smoky Quartz
Quartz (Silicon Dioxide), Formula: SiO2
mineral
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Specular Hematite
Specularite (Iron(III) oxide, Fe2O3)
mineral
Citrine
Silicon dioxide (SiO2)
mineral