Rock Identifier

Category

Synthetic (Not A Rock Or Mineral)

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

Learn about Synthetic (Not A Rock Or Mineral) in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Halite

Dolomite

Gypsum

Coal

Claystone

Serpentinite

Carbonatite

Skarn

Schist

Emerald in Matrix

Emerald in Matrix

Tumbled red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides) — mineral

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

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

Quartz (Milky Quartz / Quartz Specimen)

Silicon Dioxide (SiO2)

Milky quartz with iron-oxide staining (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz with iron-oxide staining

Quartz (silicon dioxide, SiO₂)

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

Tumbled Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz Crystal on Matrix (SiO2 (Silicon Dioxide)) — mineral

Clear Quartz Crystal on Matrix

SiO2 (Silicon Dioxide)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Quartz Mineral Specimens (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Mineral Specimens

Quartz (Silicon Dioxide, SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz Point

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO₂)) — Mineral

Milky Quartz

Silicon Dioxide (SiO₂)

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

Clear Quartz Sphere

Quartz (Silicon Dioxide, SiO2)

Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon dioxide (SiO2)) — Mineral

Quartz

Silicon dioxide (SiO2)

Quartz (Milky/Smoky variety on matrix) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Fluorite (Rainbow Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

Turquoise (CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)

Red Sandstone (Clastic sedimentary rock (primarily SiO2 with Fe2O3 iron oxide staining)) — sedimentary

Red Sandstone

Clastic sedimentary rock (primarily SiO2 with Fe2O3 iron oxide staining)

Sandstone Pebble (Sandstone) — sedimentary

Sandstone Pebble

Sandstone

Blue-gray metamorphic rock, likely gneiss or schist (Quartz–feldspar–mica assemblage; exact identification requires testing) — metamorphic

Blue-gray metamorphic rock, likely gneiss or schist

Quartz–feldspar–mica assemblage; exact identification requires testing

Sandstone (Quartz arenite / Lithic sandstone) — sedimentary

Sandstone

Quartz arenite / Lithic sandstone

Sandstone (Arenite (siliciclastic sedimentary rock composed mostly of quartz)) — sedimentary

Sandstone

Arenite (siliciclastic sedimentary rock composed mostly of quartz)

Sandstone (Iron-stained Pebble) (Sandstone (Quartz/Hematite dominated)) — sedimentary

Sandstone (Iron-stained Pebble)

Sandstone (Quartz/Hematite dominated)

Sandstone Pebble (Arenite (SiO2 primarily)) — sedimentary

Sandstone Pebble

Arenite (SiO2 primarily)

Sandstone (Ferruginous) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

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

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Sandstone (Limonitic/Arkose) (Sandstone (primarily SiO2 with FeO(OH)·nH2O)) — sedimentary

Sandstone (Limonitic/Arkose)

Sandstone (primarily SiO2 with FeO(OH)·nH2O)

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

Sandstone (Ferruginous)

Arenite (with Iron Oxide)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone Pebble (Arenite (majoritarily SiO2)) — sedimentary

Sandstone Pebble

Arenite (majoritarily SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Weathered) (Arenite (typically SiO2 as quartz grains)) — sedimentary

Sandstone (Weathered)

Arenite (typically SiO2 as quartz grains)

Breccia (Clastic Breccia) — sedimentary

Breccia

Clastic Breccia

Sedimentary Outcrop (Sandstone/Shale) (Sedimentary bedrock formation (variable composition)) — sedimentary

Sedimentary Outcrop (Sandstone/Shale)

Sedimentary bedrock formation (variable composition)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

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

Sandstone (River Stone)

Arenite (composed primarily of SiO2)

Sandstone (Pebble) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Pebble)

Arenite (primarily SiO2)