Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Specifically A Gemstone Variety)
Browse mineral (specifically a gemstone variety) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically A Gemstone Variety) in the encyclopedia
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Carnelian
Carnelian (SiO2)
mineral
Bronzite
Enstatite (var. Bronzite), (Mg,Fe)SiO3
mineral
Stichtite in Serpentinite (Atlantisite)
Mg6Cr2CO16(OH)16·4H2O in Mg3Si2O5(OH)4
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Tektite (specifically Indochinite)
Tektite (Natural silica glass)
Mineraloid (Impact glass)
Amazonite
Microcline (KAlSi3O8 with lead impurities)
mineral
Jasper
SiO2
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate (specifically Lake Superior Agate style)
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Bi-Color Tourmaline (or Watermelon Tourmaline)
Tourmaline (complex borosilicate mineral group with general formula AD3G6(BO3)3T6O18(OH,O)4)
Mineral
Fuchsite (Chrome Mica)
K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Quartz (Milky / Clear Quartz Fragment)
Silicon Dioxide (SiO2)
mineral
Pegmatite (Granitic)
Granitic Pegmatite containing Quartz, Feldspar, and Tourmaline (Schorl)
igneous
White Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Greenstone Porphyry
Porphyritic Metavolcanic Rock
igneous
White Quartz
Silicon Dioxide (SiO2)
mineral
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Quartz (specifically Milky or Rose Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Ruby (Raw Corundum)
Corundum (Al2O3) with Chromium traces
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Quartz (Yellow/Orange variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Unakite
Unakite (Epidotized Granite)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled carnelian
Carnelian, a reddish-orange variety of chalcedony (microcrystalline quartz, SiO₂)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Amazonite
K(AlSi3O8)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral