Rock Identifier

Category

Not A Rock (Synthetic Material)

Browse not a rock (synthetic material) specimens identified by the Rock Identifier community.

Learn about Not A Rock (Synthetic Material) in the encyclopedia

Dunite

Metarhyolite

Limonite

Rock Salt

Coral Rock

Rock Gypsum

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Zincite

Opalite

Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock) (Epidotized Metamorphic/Igneous Rock) — metamorphic

Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock)

Epidotized Metamorphic/Igneous Rock

Sandstone (Sandstone (Arenite)) — sedimentary

Sandstone

Sandstone (Arenite)

Sandstone (Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)) — sedimentary

Sandstone

Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Sandstone (Clastic sedimentary rock (Quartz arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (Quartz arenite)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Sedimentary Clastic Rock (Quartz-rich)) — sedimentary

Sandstone

Sedimentary Clastic Rock (Quartz-rich)

Sedimentary Sandstone (Sandstone Slab) (Arenite (SiO2 with Fe2O3 staining)) — sedimentary

Sedimentary Sandstone (Sandstone Slab)

Arenite (SiO2 with Fe2O3 staining)

Sandstone (Sandstone (composed predominantly of SiO2)) — sedimentary

Sandstone

Sandstone (composed predominantly of SiO2)

Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Sandstone (Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone

Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)

Quartzite (Quartzite) — metamorphic

Quartzite

Quartzite

Sandstone (Sedimentary Rock (Quartz/Feldspar grains cemented together)) — sedimentary

Sandstone

Sedimentary Rock (Quartz/Feldspar grains cemented together)

Sandstone (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Sandstone (Arenite (SiO2 composition dominant)) — sedimentary

Sandstone

Arenite (SiO2 composition dominant)

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Diamond (in Matrix) (Carbon (C)) — mineral

Diamond (in Matrix)

Carbon (C)

Sandstone (Sandstone (SiO2 dominated clastic sedimentary rock)) — sedimentary

Sandstone

Sandstone (SiO2 dominated clastic sedimentary rock)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Serpentine (Serpentine Group (Mg3Si2O5(OH)4)) — metamorphic

Serpentine

Serpentine Group (Mg3Si2O5(OH)4)

Chert (Flint) (SiO2 (Microcrystalline Quartz)) — sedimentary

Chert (Flint)

SiO2 (Microcrystalline Quartz)

Sandstone (Sandstone (clastic sedimentary rock)) — sedimentary

Sandstone

Sandstone (clastic sedimentary rock)

Sandstone (with Iron concretions/staining) (Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)) — sedimentary

Sandstone (with Iron concretions/staining)

Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)

Boxwork Quartz / Septarian Jasper (Boxwork (SiO2 with iron oxide inclusions)) — metamorphic

Boxwork Quartz / Septarian Jasper

Boxwork (SiO2 with iron oxide inclusions)

Weathered sandstone cobble (Quartz-rich sandstone, primarily SiO₂ with clay/iron-oxide cement) — sedimentary

Weathered sandstone cobble

Quartz-rich sandstone, primarily SiO₂ with clay/iron-oxide cement

Banded metamorphic rock, likely mica schist or gneiss (Quartz–feldspar–mica schist/gneiss; exact identification requires a fresh surface and mineral tests) — metamorphic

Banded metamorphic rock, likely mica schist or gneiss

Quartz–feldspar–mica schist/gneiss; exact identification requires a fresh surface and mineral tests

Quartzite Cobble (Quartzite (principally SiO2)) — metamorphic

Quartzite Cobble

Quartzite (principally SiO2)

Sandstone (Ferruginous) (Arenite with Iron Oxide matrix) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide matrix

Sandstone (Arenite (predominantly SiO2 with iron oxides)) — sedimentary

Sandstone

Arenite (predominantly SiO2 with iron oxides)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Chert (Limonite-stained) (Microcrystalline Quartz (SiO2) with iron oxides) — sedimentary

Chert (Limonite-stained)

Microcrystalline Quartz (SiO2) with iron oxides

Grey River Pebble (Likely Quartz-rich or Limestone) (Clastic Sedimentary Rock (typically SiO2 or CaCO3 based)) — sedimentary

Grey River Pebble (Likely Quartz-rich or Limestone)

Clastic Sedimentary Rock (typically SiO2 or CaCO3 based)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Chert / Jasper (Sedimentary Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Jasper

Sedimentary Cryptocrystalline Quartz (SiO2)

Greenish Metamorphic Rock (likely containing epidote or chlorite) (Metamorphic rock, possibly epidosite or greenstone) — Metamorphic

Greenish Metamorphic Rock (likely containing epidote or chlorite)

Metamorphic rock, possibly epidosite or greenstone

Sandstone (Quartzose Sandstone) (Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Sandstone (likely Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (likely Quartzose)

Arenite (primarily SiO2)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Unakite (Unakite (metamorphosed granitic rock)) — metamorphic

Unakite

Unakite (metamorphosed granitic rock)