Limonite with Trace Fossils
Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)
sedimentary
Category
Igneous And Sedimentary
Browse igneous and sedimentary specimens identified by the Rock Identifier community.
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Chert (Tan/Yellow variety)
Microcrystalline quartz (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide (Fe2O3) cement
sedimentary
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Mineral
Granite
Phaneritic Granitoid
igneous
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
mineral
Chromite
Chromite (FeCr2O4)
mineral
Pink Spinel
Magnesium Aluminum Oxide (MgAl2O4)
gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium impurities
mineral
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate (Microcline)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Unakite
Epidotized Granite
metamorphic
Bronzite
(Mg,Fe)SiO3
Mineral
Moonstone with Black Tourmaline
Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Blue Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Rhodolite Garnet
Mg3Al2(SiO4)3 - Fe3Al2(SiO4)3 (Pyrope-Almandine series)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Peacock Ore (Bornite/Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Variety: Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Labradorite
(Ca, Na)(Al, Si)4O8
mineral
Beryl (Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
mineral
Sodalite
Chloric sodium aluminum silicate (Na8(Al6Si6O24)Cl2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite, Sodalite, and Rose Quartz collection
Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Blue Apatite
Fluorapatite / Ca5(PO4)3F
mineral
Biotite on Quartz
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) and Quartz (SiO2)
mineral
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Biotite Schist
Biotite Schist (predominantly K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral