Rock Identifier

Category

Igneous Or Sedimentary

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

Learn about Igneous Or Sedimentary 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) — metamorphic

Gneiss

Gneiss

Gneiss (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Foliated Metamorphic Rock)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Banded Gneiss (with Quartz Vein) (Gneiss (Metamorphic rock of varying mineralogy)) — metamorphic

Banded Gneiss (with Quartz Vein)

Gneiss (Metamorphic rock of varying mineralogy)

Botryoidal Chalcedony (Agate/Desert Rose Chalcedony) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Botryoidal Chalcedony (Agate/Desert Rose Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

Gneiss

Gneiss (High-grade Metamorphic Rock)

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

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

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

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

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

Botryoidal Chalcedony (Agate)

Silicon Dioxide (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Crackle Agate / Dyed Quartz (SiO2 (Silicon Dioxide)) — mineral

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Common Opal in Host Rock (Hydrated Silica (SiO2·nH2O)) — mineraloid

Common Opal in Host Rock

Hydrated Silica (SiO2·nH2O)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Banded Agate (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Agate

Cryptocrystalline Quartz (SiO2)

Gneiss (Banded Gneiss) (Gneiss) — metamorphic

Gneiss (Banded Gneiss)

Gneiss

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

Gneiss

Metamorphic Gneiss (High-grade regional metamorphism)

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

Gneiss

Gneiss (High-grade Metamorphic Rock)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyritic Gneiss (Metamorphic Gneiss with Pyrite inclusions) — metamorphic

Pyritic Gneiss

Metamorphic Gneiss with Pyrite inclusions

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Clear Quartz (Druzy) (Crystalline Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Druzy)

Crystalline Silicon Dioxide (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Turquoise (Turquoise - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Chalcedony (Botryoidal) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Botryoidal Chalcedony (Agate)

Silicon Dioxide (SiO2)

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)

Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (specifically Amphibolite Gneiss) (Gneiss) — metamorphic

Gneiss (specifically Amphibolite Gneiss)

Gneiss

Carnelian (Carnelian Agate) (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian (Carnelian Agate)

Carnelian (Silicon Dioxide - SiO2)

Chalcedony (Chalcedony (SiO2)) — mineral

Chalcedony

Chalcedony (SiO2)

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

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)

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

Gneiss

High-grade metamorphic rock (Gneiss)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (with Mica and Quartz) (Gneissic Metamorphic Rock) — metamorphic

Gneiss (with Mica and Quartz)

Gneissic Metamorphic Rock

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

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Banded Agate (Agatized Geode Slice) (Silicon Dioxide (SiO₂)) — mineral

Banded Agate (Agatized Geode Slice)

Silicon Dioxide (SiO₂)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Gneiss (with iron staining) (Gneiss) — metamorphic

Gneiss (with iron staining)

Gneiss