Basalt (with possible Calcite/Quartz veining)
Afanitic Mafic Igneous Rock
Category
Browse manufactured stone specimens identified by the Rock Identifier community.
Basalt (with possible Calcite/Quartz veining)
Afanitic Mafic Igneous Rock
Sandstone
Arenite (specifically Iron-stained Quartz Sandstone)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2, often with CaCO3 or Fe2O3 cement)
Sandstone Cobble
Arenite (predominantly Quartz Sandstone)
Sandstone or Limestone
Arenite or Calcareous Sedimentary Rock
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone (likely Conglomerate or Gritstone)
Arenite (SiO2 based)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartzite Pebble
Quartzite (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone (likely Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (SiO2 principal)
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Fossiliferous Limestone (Shell Fragment)
Biogenic Limestone (Calcium Carbonate / CaCO3)
Milky Quartz
Quartz (SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Cloudy Quartz
Silicon Dioxide (SiO2)
Quartz (Yellow/Citrine variety)
Crystalline Silicon Dioxide (SiO2)
Chert Arrowhead
Microcrystalline Quartz (SiO2)
Limestone (River Stone)
Calcium Carbonate (CaCO3)
Chert (Green variety)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Chert
Chert (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Basalt
Mafic extrusive igneous rock
Quartzite
Quartzite (Metamorphic rock primarily composed of SiO2)
Quartzite
Metamorphic Quartzite
Quartzite
Quartzite (Metamorphic Quartz Sandstone)
Quartzite
Metamorphic Quartzite
Sandstone
Clastic sedimentary rock (Quartz arenite / Arkose)
Quartzite
Metamorphic Quartzite (SiO2)
Red Quartzite
Quartzite (Metamorphosed Quartz Arenite)
Quartz Pebble
Silicon Dioxide (SiO2)