Rock Identifier

Category

Sedimentary And Metamorphic

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

Learn about Sedimentary And Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Ironstone

Anthracite

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Agate (Chalcedony (SiO2)) — sedimentary

Agate

Chalcedony (SiO2)

Gneiss (Granulite / Foliated Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Granulite / Foliated Metamorphic Rock)

Gneiss

Epidote (Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — mineral

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Weathered quartz-rich rock, possibly sandstone or quartzite (Indeterminate; likely quartz sandstone (SiO₂-rich), possibly weakly metamorphosed quartzite) — sedimentary

Weathered quartz-rich rock, possibly sandstone or quartzite

Indeterminate; likely quartz sandstone (SiO₂-rich), possibly weakly metamorphosed quartzite

Greenstone (Metabasalt) — metamorphic

Greenstone

Metabasalt

Green Aventurine (Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — metamorphic

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Kyanite (in Schist Matrix) (Kyanite (Al2SiO5)) — metamorphic

Kyanite (in Schist Matrix)

Kyanite (Al2SiO5)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartzite Pebble (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartzite (SiO2)

Gneiss (Banded Gneiss Cobble) (Gneiss) — metamorphic

Gneiss (Banded Gneiss Cobble)

Gneiss

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

Gneiss

Gneiss (High-grade metamorphic rock)

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

Gneiss

Gneiss (High-grade metamorphic rock)

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

Gneiss

Metamorphic Gneiss (High-grade regional metamorphism)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Garnet Schist (Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)) — metamorphic

Garnet Schist

Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)

Phyllite (Phyllite (Foliated metamorphic rock)) — metamorphic

Phyllite

Phyllite (Foliated metamorphic rock)

Pyritic Gneiss (with Garnet) (Gneiss containing Pyrite (FeS2) and Almandine Garnet (Fe3Al2(SiO4)3)) — metamorphic

Pyritic Gneiss (with Garnet)

Gneiss containing Pyrite (FeS2) and Almandine Garnet (Fe3Al2(SiO4)3)

Biotite Mica (Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)) — mineral

Biotite Mica

Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Gneiss

Gneiss (High-grade metamorphic rock)

Slate (Metamorphic Pelitic Rock) — metamorphic

Slate

Metamorphic Pelitic Rock

Granitoid Gneiss with Feldspar Vein (Gneiss (High-grade Metamorphic Rock) with Potassium Feldspar (KAlSi3O8)) — metamorphic

Granitoid Gneiss with Feldspar Vein

Gneiss (High-grade Metamorphic Rock) with Potassium Feldspar (KAlSi3O8)

Quartzite / Sandstone (SiO2 (Silicon Dioxide)) — metamorphic

Quartzite / Sandstone

SiO2 (Silicon Dioxide)

Garnet Gneiss (Gneiss containing Almandine Garnet) — metamorphic

Garnet Gneiss

Gneiss containing Almandine Garnet

Pale rounded quartz-rich pebble, likely quartzite (Quartzite (mostly microcrystalline SiO₂), possibly quartz-rich sandstone or vein quartz) — metamorphic

Pale rounded quartz-rich pebble, likely quartzite

Quartzite (mostly microcrystalline SiO₂), possibly quartz-rich sandstone or vein quartz

Mica / Muscovite or Biotite (Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)) — mineral

Mica / Muscovite or Biotite

Phyllosilicate mineral group (e.g., KAl2(AlSi3O10)(OH)2)

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

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

Rhodonite

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

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

Gneiss

High-grade regional metamorphic rock (Foliated)

Quartzite (Meta-sedimentary) (Quartzite (SiO2)) — metamorphic

Quartzite (Meta-sedimentary)

Quartzite (SiO2)

Biotite Mica (K(Mg, Fe)3AlSi3O10(F, OH)2) — mineral

Biotite Mica

K(Mg, Fe)3AlSi3O10(F, OH)2

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Gossan (Iron Hat) (Goethite-Hematite rich weathered rock (Fe-hydroxides)) — sedimentary

Gossan (Iron Hat)

Goethite-Hematite rich weathered rock (Fe-hydroxides)

Gneiss (High-grade Metamorphic Gneiss) — metamorphic

Gneiss

High-grade Metamorphic Gneiss

Garnet Schist (Almandine-bearing Mica Schist) — metamorphic

Garnet Schist

Almandine-bearing Mica Schist

Blue Kyanite in Schist (Al2SiO5 in Mica Schist) — metamorphic

Blue Kyanite in Schist

Al2SiO5 in Mica Schist

Soapstone (Steatite) (Steatite (Hydrous magnesium silicate)) — metamorphic

Soapstone (Steatite)

Steatite (Hydrous magnesium silicate)

Mica Schist (Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)) — metamorphic

Mica Schist

Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)

Muscovite Schist (Metamorphic rock primarily composed of quartz and muscovite mica) — metamorphic

Muscovite Schist

Metamorphic rock primarily composed of quartz and muscovite mica

Gneiss and Igneous Rock Collection (Foliated Metamorphic Rock (Gneiss) / Igneous Rocks) — metamorphic

Gneiss and Igneous Rock Collection

Foliated Metamorphic Rock (Gneiss) / Igneous Rocks