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 (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Black Agate (Silicon Dioxide (SiO2) with carbon/iron inclusions) — sedimentary

Black Agate

Silicon Dioxide (SiO2) with carbon/iron inclusions

Quartz Sand Gravel (Silicon Dioxide (SiO2)) — sedimentary

Quartz Sand Gravel

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Likely weathered quartz-bearing rock (uncertain identification) (Possibly quartz-rich granite or granitic aplite; exact identification requires a clearer, larger image and tests) — igneous

Likely weathered quartz-bearing rock (uncertain identification)

Possibly quartz-rich granite or granitic aplite; exact identification requires a clearer, larger image and tests

Phyllite (Phyllite (regional metamorphic rock)) — metamorphic

Phyllite

Phyllite (regional metamorphic rock)

Quartzite River Cobble (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Cobble

Quartzite (primarily SiO2)

Quartzite with Hematite staining (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite with Hematite staining

Metamorphosed Quartz Sandstone (SiO2)

Mica Schist (Schist (Muscovite/Biotite Schist)) — metamorphic

Mica Schist

Schist (Muscovite/Biotite Schist)

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

Granitic Gneiss

Gneiss (High-grade metamorphic rock)

Banded Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Banded Marble

Recrystallized Calcite (CaCO3)

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)

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

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Gneiss (foliated metamorphic rock) (Gneiss) — metamorphic

Gneiss (foliated metamorphic rock)

Gneiss

Pyritic Quartzite (Quartzite with Pyrite inclusions (FeS2)) — metamorphic

Pyritic Quartzite

Quartzite with Pyrite inclusions (FeS2)

Dark metamorphic rock, likely biotite schist or gneiss (Quartz–feldspar–biotite metamorphic rock; exact identification requires a fresh surface and testing) — metamorphic

Dark metamorphic rock, likely biotite schist or gneiss

Quartz–feldspar–biotite metamorphic rock; exact identification requires a fresh surface and testing

Quartz-rich gneiss (Banded quartz–feldspar–mica gneiss; commonly containing biotite and muscovite) — metamorphic

Quartz-rich gneiss

Banded quartz–feldspar–mica gneiss; commonly containing biotite and muscovite

Jasper (Green Jasper/River Stone) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Green Jasper/River Stone)

Silicon Dioxide (SiO2) with impurities

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Raw calcite specimen (Calcite, calcium carbonate (CaCO₃)) — mineral

Raw calcite specimen

Calcite, calcium carbonate (CaCO₃)

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

White Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Raw Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (Raw Crystal)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Raw / Unpolished) (Silicon Dioxide (SiO2)) — mineral

Quartz (Raw / Unpolished)

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (Quartz variety), SiO2) — mineral

Citrine

Silicon Dioxide (Quartz variety), SiO2

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz pebble / Quartzite (Silicon Dioxide (SiO2)) — sedimentary

Quartz pebble / Quartzite

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)