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

Sandstone (with man-made markings) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Sandstone (Quartzose)

Arenite (SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Basalt (Extrusive Igneous Rock) — igneous

Basalt

Extrusive Igneous Rock

Granite (Granite) — igneous

Granite

Granite

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Sandstone (with Iron Staining) (Sandstone (mainly Quartz, SiO2, with Iron Oxides like Goethite/Hematite)) — sedimentary

Sandstone (with Iron Staining)

Sandstone (mainly Quartz, SiO2, with Iron Oxides like Goethite/Hematite)

Sandstone (Arenite (Clastic Sedimentary Rock)) — sedimentary

Sandstone

Arenite (Clastic Sedimentary Rock)

Mica Schist (Metamorphic rock dominated by micas (muscovite, biotite)) — metamorphic

Mica Schist

Metamorphic rock dominated by micas (muscovite, biotite)

Sandstone with Ironstone Concretion (Arenite with Ferruginous Cement) — sedimentary

Sandstone with Ironstone Concretion

Arenite with Ferruginous Cement

Quartz with Mica and Feldspar (Granitic Pegmatite Fragment (SiO2 + KAlSi3O8 + KAl2(AlSi3O10)(OH)2)) — igneous

Quartz with Mica and Feldspar

Granitic Pegmatite Fragment (SiO2 + KAlSi3O8 + KAl2(AlSi3O10)(OH)2)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Banded Agate (Tumbled) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Banded Agate (Tumbled)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Mica Schist (Schist (biotite/muscovite schist)) — metamorphic

Mica Schist

Schist (biotite/muscovite schist)

Glauconite (Greensand) (Glauconite ((K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconite (Greensand)

Glauconite ((K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Sandstone (Picture Sandstone) (Sandstone (primarily Quartz with Iron Oxide impurities)) — sedimentary

Sandstone (Picture Sandstone)

Sandstone (primarily Quartz with Iron Oxide impurities)

Jasper (Multi-color Chert) (Silicon dioxide (SiO2)) — sedimentary

Jasper (Multi-color Chert)

Silicon dioxide (SiO2)

Sodalite (Sodalite (Na8Al6Si6O24Cl2)) — mineral

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Banded Agate (Gray/Brown) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (Gray/Brown)

Silicon Dioxide (SiO2)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Basalt Pebble (Aphanitic Igneous Rock / Basalt) — igneous

Basalt Pebble

Aphanitic Igneous Rock / Basalt

Jasper in Calcite / Brecciated Jasper (Silicon dioxide with calcium carbonate (SiO2 with CaCO3)) — sedimentary

Jasper in Calcite / Brecciated Jasper

Silicon dioxide with calcium carbonate (SiO2 with CaCO3)

Granodiorite (Granodiorite (phaneritic intrusive igneous rock)) — igneous

Granodiorite

Granodiorite (phaneritic intrusive igneous rock)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

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

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Tumbled)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Amethyst and Agate Geode Section (Silicon Dioxide (SiO2) - Crystalline Quartz and Chalcedony) — mineral

Amethyst and Agate Geode Section

Silicon Dioxide (SiO2) - Crystalline Quartz and Chalcedony

Banded Agate (Cryptocrystalline Silica (SiO2)) — mineral

Banded Agate

Cryptocrystalline Silica (SiO2)

Quartz / Quartzite (Silicon Dioxide (SiO2)) — mineral

Quartz / Quartzite

Silicon Dioxide (SiO2)

Quartz Grain (Silicon Dioxide (SiO2)) — mineral

Quartz Grain

Silicon Dioxide (SiO2)

Gneiss (Foliated Metamorphic Rock) — metamorphic

Gneiss

Foliated Metamorphic Rock

Sandstone (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Quartz Druse (on Chalcedony/Agate base) (Silicon Dioxide (SiO2)) — mineral

Quartz Druse (on Chalcedony/Agate base)

Silicon Dioxide (SiO2)

Basalt with Amygdules (Extrusive Igneous Rock (Mafic)) — igneous

Basalt with Amygdules

Extrusive Igneous Rock (Mafic)