Tourmalinated Quartz
SiO2 with NaFe3+3Al6(BO3)3Si6O18(OH)4 inclusions
Mineral
Category
Mineral (Extraterrestrial)
Browse mineral (extraterrestrial) specimens identified by the Rock Identifier community.
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Moonstone
Orthoclase (Potassium aluminum silicate - KAlSi3O8)
mineral
Emerald In Matrix (Quartz/Calcite)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Agate (specifically Waterline or Onyx-type Agate)
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Blue Lace Agate (with Amethyst Geode center)
Silicon Dioxide (SiO2) - Cryptocrystalline Chalcedony
mineral
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Vesicular Basalt (or Scoria)
Vesicular Basalt (Aphanitic-vesicular volcanic rock)
igneous
Diamond
Diamond (C)
mineral
Quartz (Rose/Pink variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Dyed Quartz / Rose Quartz Imitation
Silicon Dioxide (SiO2) with artificial pigment
mineral
Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)
Mineral
Granite
Granite (silica-rich intrusive igneous rock)
igneous
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Pegmatite (with Quartz and Feldspar)
Granitic Pegmatite
igneous
Greenstone
Greenschist (metamorphosed mafic igneous rock)
metamorphic
Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Aventurine
Aventurine Quartz (SiO2 with inclusions)
metamorphic
Sandstone Beach Pebble
Clastic sedimentary rock (SiO2 with iron oxide cement)
sedimentary
Red Sandstone
Arenite (Iron-rich)
sedimentary
Sodalite Syenite (popularly known as Yooperlite)
Sodalite-rich Syenite (composed of alkali feldspar and sodalite)
Igneous
Greenstone (Epidote/Chlorite-rich Metabasalt)
Greenschist / Epidosite (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Granite
Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)
igneous
Greenschist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
metamorphic
Greenschist / Chloritaform Schist
Chlorite Schist (Group of Silicate Minerals)
metamorphic
Red Vanadinite on Matrix
Vanadinite (Pb5(VO4)3Cl)
mineral
Basalt
Basalt (Mafic volcanic rock)
igneous
Granite / Gneiss Complex
Felsic Plutonic Rock (Granite) or High-grade Metamorphic Rock (Gneiss)
igneous/metamorphic
Greenschist
Greenschist (Chlorite Schist)
metamorphic
Chalcedony or Chert/Jasper with secondary mineral staining
SiO2 (for chalcedony/quartz) with possible secondary copper minerals (e.g., CuSiO3·nH2O for chrysocolla, Cu2(CO3)(OH)2 for malachite) or iron oxides/hydroxides.
Mineral, potentially a rock with chalcedony/jasper.
Schist
Mica Schist (primarily Muscovite and Biotite)
metamorphic
Granite (Micro-specimen)
Plutonic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Granite
Granite (compositional mixture of Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral
Red Garnet
Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)
mineral
Limonite (Iron Ore)
Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)
Mineral
Nephrite (a form of Jade)
Nephrite (a variety of the mineral actinolite, Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral