Rock Identifier

Category

Not A Rock (Man Made Polymer)

Browse not a rock (man made polymer) specimens identified by the Rock Identifier community.

Learn about Not A Rock (Man Made Polymer) in the encyclopedia

Rock Gypsum

Coral Rock

Rock Salt

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Opalite

Map Jasper

Goldstone

Anorthosite

Gondite

Dunite

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

Limestone (Calcareous sedimentary rock (CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (CaCO3)

Granite (Granite (Intrusive Igneous Rock)) — igneous

Granite

Granite (Intrusive Igneous Rock)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Flint / Chert (or fossiliferous nodule) (Microcrystalline quartz (SiO2)) — sedimentary

Flint / Chert (or fossiliferous nodule)

Microcrystalline quartz (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Granite or Porphyritic Igneous Rock (weathered) (Granitoid) — Igneous

Granite or Porphyritic Igneous Rock (weathered)

Granitoid

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Clear Quartz (Cut/Faceted Gemstone) (Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Cut/Faceted Gemstone)

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Leopard Skin Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — sedimentary

Leopard Skin Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Basalt (Mafic Igneous Rock (composed primarily of plagioclase feldspar and pyroxene)) — Igneous

Basalt

Mafic Igneous Rock (composed primarily of plagioclase feldspar and pyroxene)

Milky Quartz with Chlorite Schist Inclusions (Quartz (SiO2) with Chlorite Group silicates (typically (Mg,Fe)3(Si,Al)4O10(OH)2)) — metamorphic

Milky Quartz with Chlorite Schist Inclusions

Quartz (SiO2) with Chlorite Group silicates (typically (Mg,Fe)3(Si,Al)4O10(OH)2)

Greywacke (likely) (Greywacke (a type of sandstone)) — Sedimentary

Greywacke (likely)

Greywacke (a type of sandstone)

Quartz vein in dark host rock (Quartz (SiO₂), likely in basalt, gabbro, or altered mafic rock) — mineral

Quartz vein in dark host rock

Quartz (SiO₂), likely in basalt, gabbro, or altered mafic rock

Unknown Tumbled Stone (Unknown (Too Blurry)) — mineral

Unknown Tumbled Stone

Unknown (Too Blurry)

Glazed Ceramic Tile (Fused Silicate-Clay composite) — Synthetic (Man-made material mimicking natural stone)

Glazed Ceramic Tile

Fused Silicate-Clay composite

Synthetic (Man-made material mimicking natural stone)

Pumice and Scoria (Vesicular Volcanic Rock (Pumice: Silicic / Scoria: Mafic)) — igneous

Pumice and Scoria

Vesicular Volcanic Rock (Pumice: Silicic / Scoria: Mafic)

Sandstone (lithic wacke) (Arenite / Lithic Wacke (mostly SiO2 with rock fragments)) — sedimentary

Sandstone (lithic wacke)

Arenite / Lithic Wacke (mostly SiO2 with rock fragments)

Basalt with Weathering Rind (Basalt (Mafic Volcanic Rock)) — igneous

Basalt with Weathering Rind

Basalt (Mafic Volcanic Rock)

Sandstone (Arenite) — Sedimentary

Sandstone

Arenite

Basalt with Quartz Vein (Basaltic rock with hydrothermal SiO2 filling) — igneous

Basalt with Quartz Vein

Basaltic rock with hydrothermal SiO2 filling

Porphyritic Basalt (Porphyritic Basalt (with Plagioclase phenocrysts)) — igneous

Porphyritic Basalt

Porphyritic Basalt (with Plagioclase phenocrysts)

Porphyritic Basalt (with Pyrolusite or Iron-oxide staining) (Porphyritic Basalt (Mafic Extrusive)) — igneous

Porphyritic Basalt (with Pyrolusite or Iron-oxide staining)

Porphyritic Basalt (Mafic Extrusive)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Unidentified Rock (Unknown) — sedimentary

Unidentified Rock

Unknown

Sandstone (Arenite (SiO2 based with various mineral cements)) — sedimentary

Sandstone

Arenite (SiO2 based with various mineral cements)

Sandstone (likely Arkosic) (Clastic Sedimentary Rock) — sedimentary

Sandstone (likely Arkosic)

Clastic Sedimentary Rock

Petrified Wood (Silicified wood (primarily quartz, SiO2)) — fossil

Petrified Wood

Silicified wood (primarily quartz, SiO2)

Fossilized Bark (Lepidodendron / Sigillaria fossil impression) — fossil

Fossilized Bark

Lepidodendron / Sigillaria fossil impression

River Pebble (likely Quartzite or Siltstone) (Sedimentary Clast (SiO2 based)) — sedimentary

River Pebble (likely Quartzite or Siltstone)

Sedimentary Clast (SiO2 based)

Orange Quartz (or Carnelian Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Orange Quartz (or Carnelian Chalcedony)

Silicon Dioxide (SiO2)

Quartz with Host Rock (Silicon Dioxide (SiO2)) — mineral

Quartz with Host Rock

Silicon Dioxide (SiO2)

Quartz Geode (likely within Limestone or Dolomite matrix) (Quartz (SiO₂)) — Mineral within a Sedimentary Rock

Quartz Geode (likely within Limestone or Dolomite matrix)

Quartz (SiO₂)

Mineral within a Sedimentary Rock

Granite Cobble (Intrusive Igneous Rock (Felsic to Intermediate)) — igneous

Granite Cobble

Intrusive Igneous Rock (Felsic to Intermediate)

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock