Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Category
Browse mineral, variety of quartz specimens identified by the Rock Identifier community.
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO2)
Pyrite in Matrix (likely Quartz or Coal)
Iron Sulfide (FeS2)
Granodiorite
Granodiorite (Phaneritic intrusive igneous rock containing Plagioclase, Quartz, and Biotite/Amphibole)
Quartz (Common Milky Quartz)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (Quartz variety), SiO2
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony Variety
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Ametrine
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2)
Quartz chunk
Silicon dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Rose Quartz
Silicon dioxide (SiO2)
Quartz (Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz Bead
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Chalcedony)
Silicon Dioxide (SiO2)
Blue Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Quartz (Yellow/Citrine variety or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Quartz (likely macrocrystalline variety)
Quartz (SiO₂)
Amazonite
Microcline (Amazonite variety), KAlSi3O8
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Tumbled blue chalcedony or pale aquamarine-like quartz
Chalcedony (microcrystalline SiO₂), possibly blue quartz; visual identification is uncertain
Quartz
Silicon dioxide (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Milky Quartz with Chlorite/Epidote
Silicon Dioxide (SiO2) with phyllosilicate or sorosilicate inclusions
Gray Agate
Cryptocrystalline Quartz (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Tumbled jasper, likely red jasper
Microcrystalline quartz (SiO₂), chalcedony variety with iron-oxide impurities
Clear Quartz
Silicon dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Smoky quartz fragment
Quartz, silicon dioxide (SiO₂), smoky variety
Green Aventurine
Quartz (SiO2) with fuchsite inclusions