Tumbled jasper or jasper-rich chert
Microcrystalline quartz (SiO₂) with iron-oxide impurities
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Tumbled jasper or jasper-rich chert
Microcrystalline quartz (SiO₂) with iron-oxide impurities
Quartz Crystal (specifically Rock Crystal)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Green Aventurine
Quartz variety with fuchsite inclusions (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Pink Granite (Water-worn Cobble)
Granite (Alkali-feldspar granite)
Quartz
SiO2
Quartz
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic Felsic Igneous Rock
Granite Water-Worn Pebble
Felsic intrusive igneous rock (Granite)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (specifically Citrine or Yellow Quartz)
Silicon Dioxide (SiO2)
Barite
Barium sulfate (BaSO4)
Citrine (likely Heat-Treated Amethyst)
Silicon Dioxide (SiO2)
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic plutonic rock (Granite)
Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Kidney Stone
Nephrolithiasis (Calcium Oxalate, Hydroxyapatite, or Uric Acid)
African Turquoise (Jasper)
Quartz (SiO2) with impurities (Epidote/Amphibole)
Quartz (Milky or Smoky variety)
Silicon Dioxide (SiO2)
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(F,OH)2
Tumbled Moonstone
Feldspar (Orthoclase/Albite), KAlSi3O8
Satin Spar (Satin Spar Selenite)
Gypsum (CaSO4·2H2O)
Quartz (Clear Quartz / Rock Crystal)
Silicon Dioxide (SiO2)