Quartzite
Quartzite (SiO2)
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace elements of titanium, iron, or manganese
Schist
Mica Schist
Conglomerate
Conglomerate (clastic sedimentary rock)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Diorite
Diorite (an intrusive igneous rock)
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Lapis Lazuli
Lapis Lazuli (Aggregate primarily of Lazurite: (Na,Ca)8(AlSiO4)6(S,SO4,Cl,1-2) with Calcite and Pyrite)
Yellow Chert (Jasper)
Microcrystalline Quartz (SiO2)
Quartz Vein in Host Rock (Breccia/Rhyolite)
Silicon Dioxide (SiO2) with matrix
Shale
Fissile Mudstone
Granite Glacial Erratic
Intrusive Phaneritic Felsic Rock (Granite)
Banded Gneiss
Gneiss (High-grade metamorphic rock)
Calcite
Calcium Carbonate (CaCO3)
Conglomerate
Conglomerate (Detrital sedimentary rock)
Chert (variations include Flint/Jasper)
Chert (Silicon Dioxide, SiO2)
Sandstone (Greywacke/Siltstone variant)
Arenite / Wacke (SiO2 with diverse mineral inclusions)
Shale
Fissile Mudrock (Clay-rich Sedimentary Rock)
Pyrite
Iron Disulfide (FeS2)
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
Sandstone (Quartz-rich)
Arenite (SiO2 based)
Sandstone
Arenite (primarily SiO2)
Chert (Common Chert)
Cryptocrystalline Quartz (SiO2)
Schist
Crystalline Metamorphic Rock (Schistose)
Quartzite Pebble
Quartzite (primarily SiO2)
Sandstone (with banding/weathering)
Clastic Sedimentary Rock (primarily SiO2)
Pyrite
Iron Disulfide (FeS2)
Sandstone
Arenite (composed primarily of SiO2)
Rhyolitic Tuff (Breccia Type)
Rhyolitic Pyroclastic Rock (Mixed Silicates including Quartz, Feldspar, and Volcanic Glass)
Basalt
Basalt (Mafic volcanic rock)
Granite
Phaneritic Felsic Igneous Rock (primarily SiO2, Al2O3, K2O, Na2O)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Sandstone (with potential Quartzite characteristics)
Clastic sedimentary rock (primarily SiO2)
Chert (and Jasper pebble)
Microcrystalline Silica (SiO2)
Basalt
Extrusive mafic igneous rock
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Ferruginous Sandstone
Clastic Sedimentary Rock (Iron-rich)
Porphyritic Basalt (Chinese Writing Stone)
Porphyritic Basalt or Porphyritic Andesite