Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2)
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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Feldspar (Plagioclase / Orthoclase)
KAlSi3O8 / CaAl2Si2O8 - NaAlSi3O8
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Green Tourmaline (Verdelite)
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
gemstone
Pyrite
Iron Sulfide (FeS2)
mineral
Diopside (likely Chromian Diopside)
Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.
mineral
Pyrite in Matrix (Gold-colored Chalcopyrite or Pyrite)
Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)
mineral
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Amazonite
Potassium Feldspar (KAlSi3O8)
mineral
Amethyst crystal
Silicon Dioxide (SiO2) with iron impurities
mineral
Muscovite
Muscovite, KAl2(AlSi3O10)(OH)2
mineral
Muscovite Mica (in Quartz/Feldspar Matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Orange Quartz
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Smoky Quartz and Citrine
Silicon Dioxide (SiO2)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
Mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Muscovite Mica
KAl2(AlSi3O10)(OH)2
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Clear Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Mineral
Chalcopyrite
CuFeS2 (Copper Iron Sulfide)
mineral
Milky Quartz
Quartz (SiO2)
Mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Garnet (Pyrope-Almandine series)
Garnet Group, (Mg,Fe)3Al2Si3O12
mineral
Schist
Schist (Foliated Metamorphic Rock)
metamorphic
Magnetite / Iron-Rich Basalt
Magnetite bearing Mafic Rock (Fe3O4)
igneous
Quartz Crystal
Silicon Dioxide (SiO2)
mineral