Quartz (Milky to Clear)
Silicon Dioxide (SiO2)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz (Milky to Clear)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
White Quartz
Quartz (Silicon Dioxide, SiO2)
Pearl
Calcium carbonate (CaCO3) - Aragonite/Calcite variety
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
Raw Sunstone
Plagioclase Feldspar (Na, Ca)(Al, Si)4O8
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Lake Superior Agate
Quartz (Variety: Agate, SiO2)
Blue sapphire ring
Corundum, aluminum oxide (Al₂O₃), blue variety colored mainly by iron and titanium
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Raw Quartz
Silicon Dioxide (SiO2)
Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
Amazonite
Microcline (variety Amazonite), K(AlSi3O8)
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
Blue Chalcedony
Silicon Dioxide (SiO2)
Tourmalinated Quartz
Quartz with Tourmaline inclusions (SiO2 with Na(Fe3Al6)(Al5Si6O18)(BO3)3(OH)4)
Carnelian
Carnelian (a variety of Chalcedony) - SiO2
Polished garnet bead (likely almandine)
Almandine garnet, Fe₃Al₂(SiO₄)₃ (tentative visual identification)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz-rich pegmatite (likely quartz with feldspar)
Pegmatitic granite; chiefly quartz (SiO₂) and feldspar, with possible mica and iron-oxide staining
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Imperial Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
Quartz–feldspar pegmatite (likely granite fragment)
Granitoid/pegmatitic rock, chiefly quartz (SiO₂) and feldspar, with dark mica or amphibole
Granitic Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8, Mica: KAl2(AlSi3O10)(OH)2)
Smoky quartz chips
Quartz, SiO₂ (smoky variety)
Quartz Mineral
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Banded Agate
Chalcedony (SiO2) with impurities
Amethyst fragment
Quartz, purple variety (SiO₂)
Lake Superior Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Quartz-rich pegmatite (likely tourmaline-bearing)
Granitic pegmatite; primarily quartz (SiO₂), with feldspar and dark tourmaline/biotite
Quartz (Quartz Pebble)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)