Pyrite
Iron Sulfide (FeS2)
Category
Browse sedimentary and metamorphic specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
Quartz
SiO2
Tumbled White Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
Pyrite
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Calcite (with iron oxide staining)
Calcium Carbonate (CaCO3)
Quartz Pebble
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Colorless Quartz (Rhinestone)
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Quartz (Pale Rose or Milky Variety)
Silicon Dioxide (SiO2)
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Quartz (Milky Variant)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Green Jasper
Silicon Dioxide (SiO2) with impurities
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Magnetite / Hematite rich ore
Magnetite (Fe3O4) or Hematite (Fe2O3)
Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone.
SiO2 (Silicon Dioxide)
Quartz
Silicon Dioxide (SiO2)
Banded gneiss pebble
Gneiss, commonly quartz–feldspar–mica gneiss
Gneiss (Metamorphic Pebble)
Gneissic Metamorphic Rock
Banded Gneiss
Gneiss (Metamorphic Rock)
Banded Gneiss
Gneiss (Metamorphic Rock)
Gneiss
Gneiss (Foliated Metamorphic Rock)
Quartzite
Metamorphic Quartzite (SiO2)
Epidote with Quartz Vein
Epidote-bearing metamorphic rock with quartz (Ca2(Al,Fe)3(SiO4)3(OH))
Mica Schist (with Muscovite)
Muscovite/Quartz Schist (KAl2(AlSi3O10)(OH)2)
Mica Schist
Mica Schist (Silicate rock)