Rock Identifier

Category

Sedimentary Or Igneous

Browse sedimentary or igneous specimens identified by the Rock Identifier community.

Learn about Sedimentary Or Igneous in the encyclopedia

Carbonatite

Carbonatite

Conglomerate

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Breccia

Ironstone

Ironstone

Troctolite

Troctolite

Lamproite

Lamproite

Kimberlite

Kimberlite

Gabbro

Gabbro

Diorite

Diorite

Basalt

Basalt

Pyroxenite

Pyroxenite

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

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (High-grade Metamorphic Gneiss) — metamorphic

Gneiss

High-grade Metamorphic Gneiss

Banded Gneiss (Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica)) — metamorphic

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica)

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

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

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Chalcedony (Agate/Jasper mix in host rock) (Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)) — mineral

Chalcedony (Agate/Jasper mix in host rock)

Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Druzy Quartz (on Geode Fragment) (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz (on Geode Fragment)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Gneiss (specifically a Granitic Gneiss) (Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)) — metamorphic

Gneiss (specifically a Granitic Gneiss)

Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)

Gneiss Pebble (Gneiss) — metamorphic

Gneiss Pebble

Gneiss

Quartz (Milky/Gravel variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Gravel variety)

Silicon Dioxide (SiO2)

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

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

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Pyrite (Pyrite (FeS2)) — Mineral

Pyrite

Pyrite (FeS2)

Porphyritic Basalt (likely artificially dyed or altered) (Basalt with plagioclase phenocrysts (likely treated)) — igneous

Porphyritic Basalt (likely artificially dyed or altered)

Basalt with plagioclase phenocrysts (likely treated)

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

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

Quartz

Quartz (Silicon Dioxide, SiO2)

Veined Quartz (SiO2 (Silicon Dioxide)) — Mineral

Veined Quartz

SiO2 (Silicon Dioxide)

Granite (Granite) — Igneous

Granite

Granite

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

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

Granite Gneiss

Gneiss (High-grade metamorphic rock)

Foliated Gneiss (River-Worn Pebble) (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Foliated Gneiss (River-Worn Pebble)

Gneiss (High-grade Regional Metamorphic Rock)

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

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

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

Feldspathic Gneiss

Feldspathic Gneiss (High-grade regional metamorphic rock)

Hematite (Iron Ore) (Hematite (Fe2O3)) — mineral

Hematite (Iron Ore)

Hematite (Fe2O3)

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

Gneiss

Gneiss (High-grade regional metamorphic rock)

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Crystal Cluster) (Silicon Dioxide (SiO2) - Quartz Variety) — mineral

Milky Quartz (Crystal Cluster)

Silicon Dioxide (SiO2) - Quartz Variety

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

Gneiss

Gneiss (High-grade regional metamorphic rock)

Carnelian Agate (Silicon dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian Agate

Silicon dioxide (SiO2) - variety of Chalcedony

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

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

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

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

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

Banded Gneiss

Gneiss (High-grade metamorphic rock)

Quartz (likely tumbled or naturally water-worn) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely tumbled or naturally water-worn)

Quartz (SiO₂ - Silicon Dioxide)

Quartz (specifically Milky Quartz/Quartzite) (Silicon Dioxide (SiO2)) — Mineral

Quartz (specifically Milky Quartz/Quartzite)

Silicon Dioxide (SiO2)

River Rock (Granitic Gneiss) (Foliated Granitic Gneiss) — metamorphic

River Rock (Granitic Gneiss)

Foliated Granitic Gneiss

Basalt or Siltstone Pebbles (Mafic volcanic rock (Basalt) or Indurated Siltstone) — igneous or sedimentary

Basalt or Siltstone Pebbles

Mafic volcanic rock (Basalt) or Indurated Siltstone

igneous or sedimentary

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Yellow Chalcedony (Carnelian/Yellow Agate) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — Mineral

Yellow Chalcedony (Carnelian/Yellow Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz