Granitic Pegmatite with Schorl
Granitic Pegmatite (NaAlSi3O8, KAlSi3O8, SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
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Browse non geological specimens identified by the Rock Identifier community.
Granitic Pegmatite with Schorl
Granitic Pegmatite (NaAlSi3O8, KAlSi3O8, SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Jasper (specifically a banded or dark variety)
Silicon Dioxide (SiO2) with impurities
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Milky Quartz
Silicon Dioxide (SiO2)
Basalt
Basalt (Mafic volcanic rock)
Fluorite
Calcium Fluoride (CaF2)
Honey Calcite
Calcium Carbonate (CaCO3)
Vanadinite
Vanadinite [Pb5(VO4)3Cl]
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Granite
Granite (Phaneritic Quartz-Feldspar Felsic Rock)
Jadeite Jade
Jadeite (Sodium Aluminum Silicate, NaAlSi₂O₆)
Ruby
Corundum (Al2O3 with Chromium impurities)
Alexandrite in Matrix
Chrysoberyl (BeAl2O4 with Chromium impurities)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Scoria (Lava Rock)
Scoria
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Clear/White)
Silicon Dioxide (SiO2)
Fluorite (Blue)
Calcium Fluoride (CaF2)
Granite Pebble
Granite
Quartz (specifically Citrine or Yellow Quartz)
Silicon Dioxide (SiO2)
Chert (variations include Flint/Novaculite)
Chert (formula: SiO2)
Granitoid (Granite/Diorite)
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica/Amphiboles)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Chert (Flint/Jasper variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Siltstone
Siltstone
Lapis Lazuli
Lapis lazuli (primary component: Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Aquamarine on Feldspar Matrix
Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)
Lapis Lazuli
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)
Pearl
Aragonite (CaCO3) with Conchiolin
Chert (specifically Flint or Gray Chalcedony)
Microcrystalline Quartz (SiO2)
Pink Sapphire
Corundum (Al2O3 with Chromium/Titanium/Iron traces)
Quartzite
Quartzite (primarily SiO2)
Green Tourmaline
Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Milky Quartz
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)