Pyrite
Iron Sulfide (FeS2)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Rose or Milky Quartz)
Silicon Dioxide (SiO2)
Beach Pebble (Quartz / Quartzite)
Silicon Dioxide (SiO2)
Magnetite
Magnetite (Fe3O4)
Quartz (Crystal)
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Disulfide (FeS2)
Quartz Crystal
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold) in Matrix
Iron Disulfide (FeS2)
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
Hematite (likely Botryoidal or Specularite variant)
Iron(III) oxide (Fe2O3)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Tumbled Clear Quartz/Rock Crystal
Silicon Dioxide (SiO2)
Pyrite in Host Rock
Iron Disulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Galena
Lead(II) sulfide (PbS)
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Feldspar (specifically Orthoclase or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
Pyrite
Iron Sulfide (FeS2)
Quartz (Grain)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Clear Quartz Crystal
Silicon Dioxide (SiO2)