Rock Identifier

Category

Igneous, Sedimentary, Metamorphic, And Mineral

Browse igneous, sedimentary, metamorphic, and mineral specimens identified by the Rock Identifier community.

Chiastolite (Andalusite) (Al2SiO5) — metamorphic

Chiastolite (Andalusite)

Al2SiO5

metamorphic
Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Actinolite (Ca2(Mg,Fe)5Si8O22(OH)2) — mineral

Actinolite

Ca2(Mg,Fe)5Si8O22(OH)2

mineral
Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Rhodonite (Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn+2,Fe+2,Mg,Ca)SiO3) — mineral

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn+2,Fe+2,Mg,Ca)SiO3

mineral
Rough Emerald (Emerald (Beryl), Be3Al2(SiO3)6) — mineral

Rough Emerald

Emerald (Beryl), Be3Al2(SiO3)6

mineral
Rhodonite (Manganese silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Fuchsite (Cr-bearing Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

Cr-bearing Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

mineral
Mica Schist with Garnet (Garnet-Mica Schist) — metamorphic

Mica Schist with Garnet

Garnet-Mica Schist

metamorphic
Dark-colored Igneous Rock (likely Basalt or Diabase) (Basalt (extrusive igneous) or Diabase (intrusive igneous)) — Igneous Rock

Dark-colored Igneous Rock (likely Basalt or Diabase)

Basalt (extrusive igneous) or Diabase (intrusive igneous)

Igneous Rock
Dragon Blood Jasper (SiO2) — mineral

Dragon Blood Jasper

SiO2

mineral
Schist (Mica Schist) — metamorphic

Schist

Mica Schist

metamorphic
Green Aventurine (Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)

metamorphic
River Pebble (likely Quartzite or Chert) (Silicon Dioxide (SiO2) crystal conglomerate) — sedimentary or metamorphic

River Pebble (likely Quartzite or Chert)

Silicon Dioxide (SiO2) crystal conglomerate

sedimentary or metamorphic
Granite (Granite (composed of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed of Quartz, Feldspar, and Mica)

igneous
Quartz (Rutilated) (Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions) — mineral

Quartz (Rutilated)

Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions

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

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

mineral
Beryl (Aquamarine) in Matrix with Schorl (Be3Al2Si6O18 (Beryl) with NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)) — mineral

Beryl (Aquamarine) in Matrix with Schorl

Be3Al2Si6O18 (Beryl) with NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)

mineral
Granite (Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)) — igneous

Granite

Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)

igneous
Green Aventurine (Quartz (Aventurine variety) - SiO₂ with Fuchsite inclusions) — Mineral

Green Aventurine

Quartz (Aventurine variety) - SiO₂ with Fuchsite inclusions

Mineral
Agate (Nodule/Chert) (Silicon Dioxide (SiO2)) — sedimentary

Agate (Nodule/Chert)

Silicon Dioxide (SiO2)

sedimentary
Jadeite Jade (Jadeite (NaAlSi2O6)) — metamorphic

Jadeite Jade

Jadeite (NaAlSi2O6)

metamorphic
River Pebbles (Sandstone and Quartzite) (SiO2 (Quartz) dominated clastic rocks) — sedimentary and metamorphic

River Pebbles (Sandstone and Quartzite)

SiO2 (Quartz) dominated clastic rocks

sedimentary and metamorphic
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Quartzite (Rounded Pebble) (Quartzite (predominantly SiO2)) — metamorphic

Quartzite (Rounded Pebble)

Quartzite (predominantly SiO2)

metamorphic
Beryl (likely Emerald or Aquamarine in matrix) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (likely Emerald or Aquamarine in matrix)

Beryllium aluminum silicate (Be3Al2Si6O18)

mineral
Granite (Granite (Phaneritic Quartz-Feldspar Plutonic Rock)) — igneous

Granite

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

igneous
Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

metamorphic
Quartz with Chlorite or Hornblende inclusions (Silicon dioxide (SiO2) with phyllosilicate or amphibole inclusions) — metamorphic

Quartz with Chlorite or Hornblende inclusions

Silicon dioxide (SiO2) with phyllosilicate or amphibole inclusions

metamorphic
Rose Quartz (Rose Quartz (SiO2)) — Mineral

Rose Quartz

Rose Quartz (SiO2)

Mineral
Amazonite (Microcline (KAlSi3O8) with lead impurities) — mineral

Amazonite

Microcline (KAlSi3O8) with lead impurities

mineral
Schist (Micaceous) (Mica Schist) — metamorphic

Schist (Micaceous)

Mica Schist

metamorphic
Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

mineral
Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

mineral
Mica Schist (Mica Schist (primarily Muscovite or Biotite sheet silicates)) — metamorphic

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

metamorphic
Jadeite (NaAlSi2O6 (Sodium Aluminum Silicate)) — mineral

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

mineral
Yellow Aventurine (Silicon Dioxide (SiO2) with inclusions) — mineral

Yellow Aventurine

Silicon Dioxide (SiO2) with inclusions

mineral
Schist (Schist (various mineral compositions)) — Metamorphic

Schist

Schist (various mineral compositions)

Metamorphic
Blue Quartz (Aventurine) (Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)) — mineral

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)

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

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

mineral