Mixed Mineral Bead Bracelet
Polycrystalline and Monocrystalline Silicates/Oxides (Quartz, Howlite, Hematite)
gemstone
Category
Igneous, Sedimentary, Metamorphic
Browse igneous, sedimentary, metamorphic specimens identified by the Rock Identifier community.
Learn about Igneous, Sedimentary, Metamorphic in the encyclopedia
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Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Hypersthene
Enstatite-Ferrosilite series, (Mg,Fe)2Si2O6
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Blue Quartz
Silicon dioxide (SiO2) with inclusions
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium impurities
mineral
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Moonstone with Black Tourmaline
Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Rhodolite Garnet
Mg3Al2(SiO4)3 - Fe3Al2(SiO4)3 (Pyrope-Almandine series)
mineral
Peacock Ore (Bornite/Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Fluorapatite / Ca5(PO4)3F
mineral
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Banded Gneiss (River Cobble)
Gneiss (a high-grade metamorphic rock)
metamorphic
Mica (Lepidolite or Muscovite)
Phyllosilicate mineral (KAl2(AlSi3O10)(OH)2 for Muscovite)
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Peacock Ore
Bornite (Cu5FeS4)
mineral
Biotite (Mica)
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
mineral
Epidote in Quartz (Epidosite)
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite, Calcite, and Pyrite)
metamorphic
Greenstone / Serpentinite
Serpentine-group / Altered Mafic Rock
metamorphic
Quartz (likely a weathered/tumbled piece)
Quartz (SiO₂)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral / Sedimentary occurrence
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Metamorphic
Calcite (Yellow/Orange variety - sometimes called Honey Calcite)
Calcite
Mineral
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
igneous