Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse man made material (anthro lithic product) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Chert (Flint)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Petrified Wood (Jet or Coalified Wood appearance)
Silicified wood (principally SiO2) or Carbonized Wood
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chert (Arrowhead Preform or Point)
Chert (Microcrystalline Quartz, SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Sandstone
Arenite (composed primarily of Quartz: SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Chert
Microcrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Rhodonite
Rhodonite (MnSiO3)
Chert (often called Flint)
Chert (Microcrystalline Quartz, SiO2)
Granodiorite (River Pebble)
Granodiorite
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica)
Banded Iron Formation (BIF) / Tiger Iron
Ferruginous Chert (primarily Quartz [SiO2] and Hematite/Magnetite [Fe2O3/Fe3O4])
Chert (Arrowhead/Tool Grade)
Microcrystalline Quartz (SiO2)
N/A - Image does not contain a rock or mineral
Anthropogenic textile material
Limestone
Sedimentary Calcite (CaCO3)
Greywacke
Dirty Sandstone (Lithic wacke)
Pyrite
Iron Sulfide (FeS2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Red Jasper
Jasper (Silicon Dioxide with iron oxide inclusions), SiO2
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Red Sandstone
Arenite (Ferruginous Sandstone)
Blue Goldstone
Aventurine Glass (SiO2 with Co and metallic inclusions)
Pyrite
Iron Pyrite (FeS₂)
Chert (Chalk-associated Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (general term for sandstone)
Sandstone
Arenite
Chert (Arrowhead Debitage or Flake)
Microcrystalline silica (SiO2)
Pyrite
Pyrite (Iron Disulfide), FeS2
Hag Stone
Perforated Sedimentary Rock (typically Limestone or Sandstone)
Quartzite
Metamorphic Rock (Mainly SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Diabase (Greenstone)
Diabase (Dolerite)
Sandstone
Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)
Granite
Phaneritic Felsic Igneous Rock