Quartz
Quartz (SiO₂)
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Quartz
Quartz (SiO₂)
Clear Quartz
Silicon Dioxide (SiO2)
Honey-colored chalcedony (possibly yellow/orange agate or carnelian)
Chalcedony, a microcrystalline variety of quartz; SiO₂. The color may result from iron-oxide inclusions. Exact identification is uncertain from a photograph alone.
Amethyst (Pale/Lavender variety)
Silicon Dioxide (SiO2)
Milky Quartz Beads
SiO2 (Silicon Dioxide)
Jasper (or possibly Agate/Chalcedony) beads
SiO2 (Silicon Dioxide)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Chrysocolla
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
Quartz with Tourmaline inclusions
Silicon Dioxide (SiO2) with Tourmaline needles
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
Jasper (Banded Jasper)
Silicon Dioxide (SiO2) with impurities
Demantoid Garnet on Matrix
Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Ocean Jasper or Orbicular Jasper
SiO2
Pyrite
Iron Sulfide (FeS2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with Iron inclusions)
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
Pyrite
Iron Pyrite (FeS2)
Pyrite
Iron Disulfide (FeS2)
Chiastolite
Andalusite variety Chiastolite
Aventurine
Quartz (Aventurine variety)
Jasper (Petrified Wood variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
Pyrite
Iron Sulfide (FeS2)
Jasper
Silicon dioxide (SiO2) with iron impurities
Hematite
Hematite (Fe2O3)
Red jasper
Jasper (microcrystalline quartz, SiO₂), iron-oxide-rich variety
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Chert (Quartz Variety)
Microcrystalline Silica (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Crazy Lace Agate
Silicon Dioxide (SiO2) with iron and aluminum inclusions
Chert (including Flint and Jasper variants)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sodalite
Na8Al6Si6O24Cl2