Pyrite Geode (Sparkling Druzy)
Iron Sulfide (FeS2) in Sedimentary Nodule
mineral
Category
Mineral And Organic Gemstone
Browse mineral and organic gemstone specimens identified by the Rock Identifier community.
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Shale with Pyrite
Clastic sedimentary rock containing Iron Disulfide (FeS2)
sedimentary
Pearl
Aragonite (CaCO3) with Conchiolin
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Concretion
Septarian Concretion (Fragmentary)
sedimentary
Amazonite
Microcline (KAlSi3O8) with trace Lead (Pb)
mineral
Amazonite
Microcline (KAlSi3O8 variant)
mineral
Amethyst
Silicon dioxide (SiO2) with iron impurities
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Peach Moonstone
Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)
mineral
Amethyst
Silicon dioxide with iron impurities (SiO2)
mineral
Amethyst and Titanium Treated Druzy
Silicon Dioxide (SiO2) with trace impurities including Iron
mineral
Chrysocolla on Quartz
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) with Quartz (SiO2)
mineral
Sunstone (Feldspar)
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Alexandrite
Chrysoberyl (BeAl2O4)
mineral
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Amethyst
Silicon Dioxide (SiO2)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with Fe2+ impurities)
mineral
Carnelian
Chalcedony (SiO2) with Iron Oxide impurities
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Blue Chalcedony
Chalcedony (SiO2)
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium
mineral
Peach Moonstone
Orthoclase (KAlSi3O8)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Sunstone
Oligoclase (Feldspar variety), (Na,Ca)(Si,Al)4O8
mineral
Chrysocolla in Quartz (Quantum Quattro variant)
Hydrated copper silicates (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) often mixed with SiO2
mineral
Blue Apatite
Fluorapatite / Ca5(PO4)3F
mineral
Amethyst (Quartz)
Amethyst (Silicon Dioxide with Iron impurities, SiO2)
mineral
Amazonite
K(AlSi3O8)
mineral
Amazonite
Microcline (KAlSi3O8) with Trace Elements
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Amethyst Quartz
Amethyst (Silicon Dioxide, SiO2)
mineral
Chrysocolla in Matrix
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Amethyst (as seen in jewelry)
Silicon Dioxide (SiO2) with iron impurities
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Amethyst
Crystalline Quartz (SiO2 with iron impurities)
mineral
Kunzite (Spodumene)
Spodumene (LiAlSi2O6)
mineral