Rock Identifier

Category

Mineral Side Rock

Browse mineral side rock specimens identified by the Rock Identifier community.

Learn about Mineral Side Rock in the encyclopedia

Rock Salt

Calc-Silicate Rock

Calc-Silicate Rock

Siderite

Halite

Dolomite

Gypsum

Coal

Claystone

Serpentinite

Carbonatite

Skarn

Schist

Amethyst Geode (Silicon Dioxide with impurities (SiO2)) — mineral

Amethyst Geode

Silicon Dioxide with impurities (SiO2)

Likely quartz-rich rock fragment (Quartz (silicon dioxide, SiO₂), possibly in a granitic or pegmatitic matrix) — mineral

Likely quartz-rich rock fragment

Quartz (silicon dioxide, SiO₂), possibly in a granitic or pegmatitic matrix

Quartz (Quartz (SiO2)) — Mineral

Quartz

Quartz (SiO2)

Likely quartz-rich rock fragment (Quartz (SiO₂), possibly iron-stained quartz or quartzite) — mineral

Likely quartz-rich rock fragment

Quartz (SiO₂), possibly iron-stained quartz or quartzite

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

Quartz (Clear Quartz Point)

Silicon Dioxide (SiO2)

Yellow Jasper (Limonite-stained Chert) (Silicon Dioxide (SiO2) with Limonite/Goethite inclusions) — sedimentary

Yellow Jasper (Limonite-stained Chert)

Silicon Dioxide (SiO2) with Limonite/Goethite inclusions

Garnet in Schist (Garnetiferous Micaceous Schist) (Almandine Garnet, Fe3Al2(SiO4)3) — metamorphic

Garnet in Schist (Garnetiferous Micaceous Schist)

Almandine Garnet, Fe3Al2(SiO4)3

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

Clear Quartz Point

Silicon Dioxide (SiO2)

Quartz crystal (likely milky quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Quartz crystal (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Likely polished/tumbled fossil shell or concretion (Indeterminate; possibly a fossil bivalve or gastropod in mineralized matrix) — fossil

Likely polished/tumbled fossil shell or concretion

Indeterminate; possibly a fossil bivalve or gastropod in mineralized matrix

Almandine Garnet (Iron aluminum silicate (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet

Iron aluminum silicate (Fe3Al2(SiO4)3)

Diamond (as set in a metal alloy ring) (Diamond (Pure Carbon, C)) — mineral

Diamond (as set in a metal alloy ring)

Diamond (Pure Carbon, C)

Epidote (Epidote (Ca2(Al,Fe)3(SiO4)3(OH))) — mineral

Epidote

Epidote (Ca2(Al,Fe)3(SiO4)3(OH))

Botryoidal Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony (Agate)

Silicon Dioxide (SiO2)

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

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz with Iron Staining (Silicon Dioxide (SiO2) with Ferric Iron Oxides) — mineral

Quartz with Iron Staining

Silicon Dioxide (SiO2) with Ferric Iron Oxides

Almandine Garnet in Matrix (Almandine, Fe3Al2(SiO4)3) — metamorphic

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Likely quartz crystal cluster (Quartz (silicon dioxide, SiO₂)) — mineral

Likely quartz crystal cluster

Quartz (silicon dioxide, SiO₂)

Blue Sapphire Crystal (Rough) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Blue Sapphire Crystal (Rough)

Corundum (Aluminum Oxide, Al2O3)

Garnet in Matrix (likely Almandine in Quartz/Mica Schist) (Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock) — metamorphic

Garnet in Matrix (likely Almandine in Quartz/Mica Schist)

Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

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

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Clear Quartz Cluster

Quartz (Silicon Dioxide - SiO2)

Amethyst Cluster (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst Cluster

Silicon Dioxide (SiO2) with iron impurities

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Dyed Agate (Silicon dioxide, SiO2) — Mineral (Chalcedony)

Dyed Agate

Silicon dioxide, SiO2

Mineral (Chalcedony)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (specifically a Double-Terminated variety) (Silicon Dioxide (SiO2) - Low Quartz) — mineral

Quartz Crystal (specifically a Double-Terminated variety)

Silicon Dioxide (SiO2) - Low Quartz

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Herkimer Diamond (Quartz (Silicon Dioxide, SiO2)) — mineral

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Garnet (Almandine) (Almandine (Fe3Al2(SiO4)3)) — metamorphic

Garnet (Almandine)

Almandine (Fe3Al2(SiO4)3)

Garnet (Almandine) (Almandine (Fe3Al2(SiO4)3)) — mineral

Garnet (Almandine)

Almandine (Fe3Al2(SiO4)3)

Citrine Geode Fragment (Citrine (Silicon Dioxide with Iron Impurities), SiO2) — mineral

Citrine Geode Fragment

Citrine (Silicon Dioxide with Iron Impurities), SiO2

Gold (Gold (Native Au)) — mineral

Gold

Gold (Native Au)

Clear Quartz (Druzy/Crystal Cluster) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Druzy/Crystal Cluster)

Silicon Dioxide (SiO2)

Silver (Morgan Dollar) (Native Silver (Ag) - 90% Silver, 10% Copper alloy) — mineral

Silver (Morgan Dollar)

Native Silver (Ag) - 90% Silver, 10% Copper alloy

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)