Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Igneous Associated Mineral in the encyclopedia
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Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Granite
Felsic Plutonic Igneous Rock
igneous
Weathered metamorphic rock, possibly schist or gneiss
Indeterminate; likely quartz–feldspar–mica rock, potentially greenschist or gneiss
metamorphic
Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral
Fluorite
Calcium fluoride (CaF2)
mineral
Yellow Agate
Chalcedony (cryptocrystalline Quartz), SiO2
mineral
Dark gray volcanic rock, probably andesite or basalt
Fine-grained mafic–intermediate volcanic rock; likely basalt (plagioclase ± pyroxene), possibly andesite
igneous
Likely garnet-bearing metamorphic rock
Garnet amphibolite or garnet-bearing schist; chiefly almandine garnet (Fe₃Al₂Si₃O₁₂) with amphibole, mica, and quartz
metamorphic
Granite Pebble
Intrusive Igneous Rock
igneous
Weathered quartz-mica schist
Quartz–muscovite/biotite schist, locally iron-oxide stained
metamorphic
Rhyolite
Extrusive igneous rock (felsic)
igneous
Carnelian
Carnelian (SiO2 variant)
mineral
Biotite-rich schist (likely mica schist)
Mica schist; predominantly quartz, biotite mica, and feldspar
metamorphic
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz with Mica/Host Rock
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium impurities
mineral
Granite
Intrusive igneous rock
igneous
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Peacock Ore
Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Granite
Plutonic Igneous Rock
igneous
Pyrite in Quartz
Iron Sulfide (FeS2) with Silicon Dioxide (SiO2)
mineral
Weathered quartz-rich metamorphic rock, likely gneiss or schist
Quartz–feldspar–mica gneiss/schist (tentative; image resolution limits certainty)
metamorphic
Tumbled Black Stone
Unknown, possibly Obsidian, Onyx, or Tourmaline
igneous or mineral
Chalcedony with Quartz
Silicon Dioxide (SiO2)
mineral
Likely quartz fragment
Quartz (silicon dioxide, SiO₂)
mineral
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Chromite
Chromite (FeCr2O4)
mineral
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
mineral
Biotite on Quartz
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) and Quartz (SiO2)
mineral
Menilite Opal (Goddess Stone)
Menilite Opalescent Silex (Amorphous Hydrated Silica)
sedimentary
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Mineral
Tourmaline-rich schist (likely black tourmaline)
Schist containing schorl, Fe-rich NaFe3Al6(BO3)3Si6O18(OH)4
metamorphic
Sodalite
Na8(Al6Si6O24)Cl2
mineral