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

Red Sandstone (Sandstone (hematitic/iron-rich quartzite or arenite)) — sedimentary

Red Sandstone

Sandstone (hematitic/iron-rich quartzite or arenite)

Unakite / Feldspar Veined Metamorphic Pebble (Metamorphic Rock with K-Feldspar, Epidote, and Quartz) — metamorphic

Unakite / Feldspar Veined Metamorphic Pebble

Metamorphic Rock with K-Feldspar, Epidote, and Quartz

Jasper River Stone (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper River Stone

Silicon Dioxide (SiO2) with iron oxide inclusions

Thunderegg (Ate Agate/Jasper Geode) (Silicon Dioxide (SiO2) within Rhyolite/Perlite matrix) — sedimentary/igneous intermediary

Thunderegg (Ate Agate/Jasper Geode)

Silicon Dioxide (SiO2) within Rhyolite/Perlite matrix

sedimentary/igneous intermediary

Quartz Pebble (Crystalline Silica (SiO2)) — mineral

Quartz Pebble

Crystalline Silica (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Ferruginous) (Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)

Pebble (Lithified rock fragment / Sedimentary clast) — sedimentary

Pebble

Lithified rock fragment / Sedimentary clast

Fossilized Coral (Rugose Coral / Hexagonaria (Fossilized calcium carbonate)) — fossil

Fossilized Coral

Rugose Coral / Hexagonaria (Fossilized calcium carbonate)

River Pebble (Weathered Rock Fragment) — sedimentary

River Pebble

Weathered Rock Fragment

Basalt (Extrusive igneous rock) — igneous

Basalt

Extrusive igneous rock

Foliated Metamorphic Rock (likely Gneiss or Schist) (Gneissic Metamorphic Rock) — metamorphic

Foliated Metamorphic Rock (likely Gneiss or Schist)

Gneissic Metamorphic Rock

Fossil Coral (Scleractinia (fossil order), primarily Calcium Carbonate (CaCO3)) — sedimentary

Fossil Coral

Scleractinia (fossil order), primarily Calcium Carbonate (CaCO3)

Sandstone (Calcareous or Quartz-rich) (Arenite) — sedimentary

Sandstone (Calcareous or Quartz-rich)

Arenite

Shale (Sedimentary Shale) — sedimentary

Shale

Sedimentary Shale

Shale and Pebble Fragment (Sedimentary Rock (Mudstone/Shale with Silica Pebble)) — sedimentary

Shale and Pebble Fragment

Sedimentary Rock (Mudstone/Shale with Silica Pebble)

Mudstone (Argillite / Siliciclastic sedimentary rock) — sedimentary

Mudstone

Argillite / Siliciclastic sedimentary rock

River Rock (likely Basalt or Greywacke) (Basalt or Lithic Sandstone) — Igneous or Sedimentary (water-worn)

River Rock (likely Basalt or Greywacke)

Basalt or Lithic Sandstone

Igneous or Sedimentary (water-worn)

Basalt with Calcite Veins (Extrusive Igneous Rock) — igneous

Basalt with Calcite Veins

Extrusive Igneous Rock

Basalt (Aphanitic Mafic Igneous Rock) — igneous

Basalt

Aphanitic Mafic Igneous Rock

Basalt (with possible quartz/calcite inclusion) (Extrusive mafic igneous rock) — igneous

Basalt (with possible quartz/calcite inclusion)

Extrusive mafic igneous rock

Basalt with Plagioclase or Quartz Inclusion (Melanocratic Basalt with Porphyritic Inclusion) — igneous

Basalt with Plagioclase or Quartz Inclusion

Melanocratic Basalt with Porphyritic Inclusion

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Basalt River Pebble (Basalt (Mafic Volcanic Rock)) — igneous

Basalt River Pebble

Basalt (Mafic Volcanic Rock)

Basalt Pebble (Basalt (Mafic volcanic rock)) — igneous

Basalt Pebble

Basalt (Mafic volcanic rock)

Basalt River Pebble (Basalt (Mafic Volcanic Rock)) — igneous

Basalt River Pebble

Basalt (Mafic Volcanic Rock)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt

Basalt (River Stone) (Basalt) — igneous

Basalt (River Stone)

Basalt

Basalt River Pebble (Basalt (Mafic volcanic rock)) — igneous

Basalt River Pebble

Basalt (Mafic volcanic rock)

Basalt with Phenocrysts (Porphyritic Basalt) — igneous

Basalt with Phenocrysts

Porphyritic Basalt

Basalt Pebble (Basalt (Mafic Volcanic Rock)) — igneous

Basalt Pebble

Basalt (Mafic Volcanic Rock)

Vesicular Basalt (River Cobble) (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Vesicular Basalt (River Cobble)

Basalt (Mafic Extrusive Igneous Rock)

Basalt River Pebble (with Quartz Vein) (Basalt (Mafic Volcanic Rock)) — igneous

Basalt River Pebble (with Quartz Vein)

Basalt (Mafic Volcanic Rock)

Vesicular Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Vesicular Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Basalt River Stone (Basalt (extrusive mafic rock)) — igneous

Basalt River Stone

Basalt (extrusive mafic rock)

Basalt (Basalt) — igneous

Basalt

Basalt

Basalt with Quartz Vein (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt with Quartz Vein

Basalt (Mafic Extrusive Igneous Rock)

Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

Vesicular Basalt (Basalt with secondary mineral infills) — igneous

Vesicular Basalt

Basalt with secondary mineral infills

Basalt River Stone (Basalt (Mafic Igneous Rock)) — igneous

Basalt River Stone

Basalt (Mafic Igneous Rock)

Basalt (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt