Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Category
Browse igneous and sedimentary specimens identified by the Rock Identifier community.
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
Magnetite with Quartz
Magnetite (Fe3O4)
Fluorite
Calcium Fluoride (CaF2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (likely Rose or Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Chalcedony (Agate/Chert)
Silicon Dioxide (SiO2)
Biotite Schist
Biotite Gneiss/Schist (approximate formula K(Mg,Fe)3AlSi3O10(OH)2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Dalmatian Stone (often called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite (formerly believed to be Jasper)
Quartz (likely a form of massive or vein quartz)
Quartz (SiO₂)
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Rose Quartz
Silicon dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Dalmatian Stone (commonly called Dalmatian Jasper)
Peralkaline Rock (mixed Feldspar, Quartz, and Arfvedsonite)
Hematite (likely Botryoidal or Specularite variant)
Iron(III) oxide (Fe2O3)
Quartz Crystal
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Green Schist
Greenschist (Chlorite Schist)
Carnelian
Carnelian (variety of Chalcedony, SiO2)