Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Category
Gemstone
Browse gemstone specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
Sedimentary / Mineral
Quartz (Small Grains)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
mineral
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
mineral
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Amethyst
Silicon dioxide (SiO2) with iron impurities
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Malachite with Chrysocolla
Copper carbonate hydroxide (Cu2CO3(OH)2) and Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Diamond (or Cubic Zirconia simulant)
Carbon (C) or Zirconium Dioxide (ZrO2)
mineral
Quartz on Host Rock
Silicon Dioxide (SiO2)
mineral
Orange Quartz (Tangerine Quartz)
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Amazonite
Microcline (KAlSi3O8) with lead impurities
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
gemstone
Pearl
Calcium carbonate (CaCO3) - mainly Aragonite with Conchiolin
mineraloid
Sunstone
Feldspar (Plagioclase group, (Na,Ca)(Al,Si)4O8)
gemstone
Carnelian
Quartz (Silicon Dioxide, SiO2)
gemstone
Aquamarine
Beryllium Aluminum Silicate, Be3Al2(SiO3)6
gemstone
Opal
Hydrated amorphous silica, SiO2·nH2O
gemstone
Opal
Hydrated amorphous silica (SiO2·nH2O)
gemstone
Emerald in Matrix
Beryl (Be3Al2(SiO3)6)
gemstone
Black Opal
Hydrated amorphous silica (SiO2·nH2O)
gemstone
Tanzanite
Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))
gemstone
Tumbled tiger’s eye
Quartz (SiO₂) with crocidolite-derived fibrous inclusions
gemstone
Morganite (Pink Beryl)
Beryl (Be₃Al₂Si₆O₁₈:Mn)
gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
gemstone
Dragon Vein Agate (Dyed/Fractured Quartz)
Silicon dioxide (SiO2)
gemstone
Rainbow Moonstone (White Labradorite)
Labradorite (White varieties with Schiller effect), (Na,Ca)(Al,Si)4O8
gemstone
Ametrine
SiO2 (Silicon Dioxide with iron impurities)
gemstone
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
gemstone
Aquamarine
Be3Al2(Si6O18)
gemstone
Chrysoprase
Chalcedony (SiO2)
gemstone
Amethyst
Quartz (SiO2)
gemstone
Biotite-bearing granite or granitic gneiss
Granite; primarily quartz (SiO₂), feldspar, and biotite mica
igneous
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
igneous
Citrine
Silicon dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
gemstone
Moonstone (Feldspar)
Orthoclase feldspar, (K,Na)AlSi3O8
mineral
Moonstone (Orthoclase Feldspar)
Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)
mineral
Green Tourmaline (Verdelite)
Complex sodium iron aluminum borosilicate (Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4)
gemstone