Rock Identifier

Category

Sedimentary Or Metamorphic (Low Grade)

Browse sedimentary or metamorphic (low grade) specimens identified by the Rock Identifier community.

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Gneiss (Gneissic Metamorphic Rock) — metamorphic

Gneiss

Gneissic Metamorphic Rock

Granitic Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Granitic Gneiss

Gneiss (High-grade Metamorphic Rock)

Greenschist (Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)) — metamorphic

Greenschist

Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)

Banded Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic Rock)

Anthracite Coal (Anthracite (Carbon Content: 86%–98%)) — metamorphic

Anthracite Coal

Anthracite (Carbon Content: 86%–98%)

Gneiss (with Quartz and Biotite Mica) (Gneiss) — metamorphic

Gneiss (with Quartz and Biotite Mica)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)) — metamorphic

Gneiss

Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Gneiss (High-grade Metamorphic Rock) (Gneiss (Metamorphic silicate rock)) — metamorphic

Gneiss (High-grade Metamorphic Rock)

Gneiss (Metamorphic silicate rock)

Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade regional metamorphic rock)

Gneiss (specifically Granite Gneiss) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss (specifically Granite Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (High-grade foliated metamorphic rock) — metamorphic

Gneiss

High-grade foliated metamorphic rock

Gneiss (Metamorphic Rock) (Gneiss (high-grade regional metamorphic rock)) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss (high-grade regional metamorphic rock)

Gneiss (Banded Gneiss) (Gneiss) — metamorphic

Gneiss (Banded Gneiss)

Gneiss

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Banded Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade metamorphic rock)

Banded River Cobble with Mafic Dike (Hydrothermally altered Graywacke or Sandstone with Mafic Intrusion) — igneous and sedimentary

Banded River Cobble with Mafic Dike

Hydrothermally altered Graywacke or Sandstone with Mafic Intrusion

igneous and sedimentary

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Mica Schist (Mica Schist) — metamorphic

Mica Schist

Mica Schist

Garnet-Bearing Gneiss (Almandine-Garnet Gneiss) — metamorphic

Garnet-Bearing Gneiss

Almandine-Garnet Gneiss

Gneiss (specifically Amphibolite Gneiss) (Gneiss) — metamorphic

Gneiss (specifically Amphibolite Gneiss)

Gneiss

Gneiss (specifically a weathered Amphibolite or Garnet Gneiss) (Gneiss (complex silicate composition)) — metamorphic

Gneiss (specifically a weathered Amphibolite or Garnet Gneiss)

Gneiss (complex silicate composition)

Epidote in Basalt (Epidotized Basalt (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH) in Mafic Igneous Host)) — igneous

Epidote in Basalt

Epidotized Basalt (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH) in Mafic Igneous Host)

Quartz (Drusy/Crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Drusy/Crystalline)

Silicon Dioxide (SiO2)

Sand (Construction Grade) (Unconsolidated siliciclastic sediment (primarily SiO2)) — sedimentary

Sand (Construction Grade)

Unconsolidated siliciclastic sediment (primarily SiO2)

Banded Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Banded Gneiss (Gneiss (Metamorphic high-grade rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic high-grade rock)

Banded Gneiss (Gneiss (Metamorphic high-grade rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic high-grade rock)

Kyanite (Kyanite (Al2SiO5)) — Mineral

Kyanite

Kyanite (Al2SiO5)

Gneiss (Pebble) (Gneiss) — metamorphic

Gneiss (Pebble)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (with Quartzite and Mica) (Gneiss) — metamorphic

Gneiss (with Quartzite and Mica)

Gneiss

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Blue Apatite (Apatite-(CaF), Ca5(PO4)3F) — mineral

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F

Granitic Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Granitic Gneiss

Gneiss (High-grade regional metamorphic rock)

Unidentified Rock Fragment (Unknown) — Rock

Unidentified Rock Fragment

Unknown

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)