Rock Identifier

Category

Not A Rock Or Mineral

Browse not a rock or mineral specimens identified by the Rock Identifier community.

Learn about Not A Rock Or Mineral in the encyclopedia

Claystone

Shale

Rock Salt

Rock Gypsum

Coral Rock

Asphalt Rock

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Albite

Potassium Feldspar

Potassium Feldspar

Halite

Dolomite

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Granite) — igneous

Granite

Granite

Emerald in Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Sandstone Concretion (Clastic sedimentary rock (primarily Quartz SiO2 with mineral cement)) — sedimentary

Sandstone Concretion

Clastic sedimentary rock (primarily Quartz SiO2 with mineral cement)

Granite (Granite (Plutonic Igneous Rock)) — igneous

Granite

Granite (Plutonic Igneous Rock)

Quartz Vein in Greenstone (Metamorphic rock with quartz vein (SiO2 / mixed silicates)) — metamorphic

Quartz Vein in Greenstone

Metamorphic rock with quartz vein (SiO2 / mixed silicates)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Granite cobble (Granite (Felsic Plutonic Rock)) — igneous

Granite cobble

Granite (Felsic Plutonic Rock)

Schist (Schist (Crystalline metamorphic rock)) — metamorphic

Schist

Schist (Crystalline metamorphic rock)

Biotite Mica (Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)) — mineral

Biotite Mica

Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)

Sandstone with Iron Staining (Arenite (SiO2 with Fe2O3)) — sedimentary

Sandstone with Iron Staining

Arenite (SiO2 with Fe2O3)

Granite (Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Quartz Veined Jasper (Microcrystalline quartz (SiO2) with calcium carbonate or quartz veins) — sedimentary

Quartz Veined Jasper

Microcrystalline quartz (SiO2) with calcium carbonate or quartz veins

Quartz Pebbles (Silicon Dioxide (SiO2)) — mineral

Quartz Pebbles

Silicon Dioxide (SiO2)

Dendritic sandstone (Sandstone with Manganese Oxide dendrites) — sedimentary

Dendritic sandstone

Sandstone with Manganese Oxide dendrites

Agate (Silicon Dioxide (SiO2)) — sedimentary

Agate

Silicon Dioxide (SiO2)

Sandstone with Quartz/Calcite druse (Arenite with druse (SiO2 or CaCO3)) — sedimentary

Sandstone with Quartz/Calcite druse

Arenite with druse (SiO2 or CaCO3)

Mica Schist / Granite (Mica Schist (Silicate metamorphic rock)) — metamorphic

Mica Schist / Granite

Mica Schist (Silicate metamorphic rock)

Pink Granite (Unakite-bearing or Epidote-bearing Granite) (Plutonic Igneous Rock (Granite)) — igneous

Pink Granite (Unakite-bearing or Epidote-bearing Granite)

Plutonic Igneous Rock (Granite)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Quartz in Matrix (Silicon Dioxide (SiO2) in host rock matrix) — mineral

Quartz in Matrix

Silicon Dioxide (SiO2) in host rock matrix

Granite (Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

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

Sandstone (likely Quartzose Sandstone)

Arenite (SiO2 based)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Calcite (Yellow/Orange variety - sometimes called Honey Calcite) (Calcite) — Mineral

Calcite (Yellow/Orange variety - sometimes called Honey Calcite)

Calcite

Granite fragment (Granite (Felsic intrusive igneous rock)) — igneous

Granite fragment

Granite (Felsic intrusive igneous rock)

Sandstone (Banded) (Sedimentary Clastic Rock) — sedimentary

Sandstone (Banded)

Sedimentary Clastic Rock

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

Quartz (Clear Quartz)

Silicon Dioxide (SiO2)

Quartz Vein in Greenstone (Hydrothermal Quartz (SiO2) with Chlorite/Epidote Schist host rock) — metamorphic

Quartz Vein in Greenstone

Hydrothermal Quartz (SiO2) with Chlorite/Epidote Schist host rock

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Vesicular Basalt or Porphyritic Rhyolite (Extrusive Igneous Rock) — igneous

Vesicular Basalt or Porphyritic Rhyolite

Extrusive Igneous Rock

Granite (Plutonic Igneous Rock) — igneous

Granite

Plutonic Igneous Rock

Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

Granite (Granite) — Igneous

Granite

Granite

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Bauxite (Hydrated aluminum oxides (mixture of gibbsite, boehmite, and diaspore)) — sedimentary

Bauxite

Hydrated aluminum oxides (mixture of gibbsite, boehmite, and diaspore)

Glauconitic Sandstone (Greensand) (Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone (Greensand)

Glauconitic Quartz Arenite (containing Glauconite, (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — Mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)