Chrysoprase
Silicon dioxide with nickel impurities (SiO2 + Ni)
Category
Browse mineral; variety of quartz specimens identified by the Rock Identifier community.
Chrysoprase
Silicon dioxide with nickel impurities (SiO2 + Ni)
Quartz
Silicon dioxide (SiO2)
Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Milky Quartz (Tumbled)
Quartz (Silicon Dioxide, SiO2)
Quartz Crystal Cluster (with Selenite Satin Spar)
Silicon Dioxide (SiO2)
Mixed Quartz and Jasper Pebbles
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Prase Quartz on Feldspar
Quartz (Silicon Dioxide, SiO2) with Hedenbergite inclusions on Potassium Feldspar (KAlSi3O8)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Tumbled jasper or jasper-rich chert
Microcrystalline quartz (SiO₂) with iron-oxide impurities
Amethyst crystal cluster
Amethyst, purple quartz (SiO₂) colored mainly by iron impurities and irradiation
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Citrine or Smoky variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Citrine
Silicon Dioxide (Quartz variety), SiO2
Quartz
SiO2 (Silicon Dioxide)
Mixed Mineral Collection (with Quartz, Beryl, and host rock)
Silicon Dioxide (Quartz), Be3Al2Si6O18 (Beryl), and associated Schist/Pegmatite
Quartz
Silicon Dioxide (SiO2)
Tumbled quartz-rich stone, likely brown agate or jasper
Microcrystalline silica (chalcedony/quartz, SiO₂), possibly iron-stained agate or jasper
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Tumbled quartz with iron-oxide staining
Quartz (SiO₂), locally stained by goethite/limonite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon dioxide (SiO2) with traces of titanium, iron, or manganese
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Fuchsite
Chromian Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz (Tumbled Pebble)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chalcedony Pebble / Rough Agate
Silicon Dioxide (SiO2)