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

Blue Apatite (Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

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

Clear Quartz Fragment

Quartz (Silicon Dioxide, SiO2)

Red Jasper (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Gneiss (Gneiss (foliated metamorphic rock)) — metamorphic

Gneiss

Gneiss (foliated metamorphic rock)

Banded Gneiss (Banded Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Banded Gneiss (Metamorphic Rock)

Gneiss with Quartz Veining (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss with Quartz Veining

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss (Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)) — metamorphic

Gneiss

Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)

Mica Schist (Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)) — metamorphic

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)

Weathered schist or foliated metamorphic rock (Mica schist, possibly phyllite; exact identification requires a fresh surface and testing) — metamorphic

Weathered schist or foliated metamorphic rock

Mica schist, possibly phyllite; exact identification requires a fresh surface and testing

Weathered volcanic rock, likely vesicular basalt or scoria (Basaltic volcanic rock; predominantly plagioclase, pyroxene, and possibly olivine with iron-oxide weathering) — igneous

Weathered volcanic rock, likely vesicular basalt or scoria

Basaltic volcanic rock; predominantly plagioclase, pyroxene, and possibly olivine with iron-oxide weathering

Quartzite (or Chert/Flint gravel) (Quartzite (SiO2 with iron oxide inclusions)) — metamorphic

Quartzite (or Chert/Flint gravel)

Quartzite (SiO2 with iron oxide inclusions)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Muscovite Schist with Quartz (Mica Schist (KAl2(AlSi3O10)(OH)2 with SiO2)) — metamorphic

Muscovite Schist with Quartz

Mica Schist (KAl2(AlSi3O10)(OH)2 with SiO2)

Fuchsite in Quartz (K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)) — metamorphic

Fuchsite in Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)

Shungite (Non-crystalline carbon (allotrope of carbon)) — metamorphic

Shungite

Non-crystalline carbon (allotrope of carbon)

Garnet Schist (Garnetiferous Mica Schist) — metamorphic

Garnet Schist

Garnetiferous Mica Schist

Gneiss (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Foliated Metamorphic Rock)

Greenschist (Chlorite Schist) — metamorphic

Greenschist

Chlorite Schist

Quartz Vein in Schist (Quartz (SiO2) in Pelitic Schist) — metamorphic

Quartz Vein in Schist

Quartz (SiO2) in Pelitic Schist

Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

Pyritic Gneiss (Metamorphic Gneiss with Pyrite inclusions) — metamorphic

Pyritic Gneiss

Metamorphic Gneiss with Pyrite inclusions

Tumbled Agate (Silicon Dioxide (SiO2)) — sedimentary

Tumbled Agate

Silicon Dioxide (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

Agate (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Agate

Silicon dioxide (SiO2) - Microcrystalline Quartz

Quartz–feldspar–mica metamorphic rock, likely gneiss (Gneiss; composition commonly quartz (SiO₂), feldspars, biotite/hornblende, and minor accessory minerals) — metamorphic

Quartz–feldspar–mica metamorphic rock, likely gneiss

Gneiss; composition commonly quartz (SiO₂), feldspars, biotite/hornblende, and minor accessory minerals

Slate (Slate (foliated metamorphic rock)) — metamorphic

Slate

Slate (foliated metamorphic rock)

Gneiss (High-grade Metamorphic Gneiss) — metamorphic

Gneiss

High-grade Metamorphic Gneiss

Mica-rich metamorphic rock, likely schist (Muscovite–biotite schist; principally muscovite mica, biotite, quartz, and feldspar) — metamorphic

Mica-rich metamorphic rock, likely schist

Muscovite–biotite schist; principally muscovite mica, biotite, quartz, and feldspar

Weathered, quartz-rich metamorphic rock (likely schist or gneiss) (Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining) — metamorphic

Weathered, quartz-rich metamorphic rock (likely schist or gneiss)

Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining

Metaconglomerate (Metaconglomerate (Quartzite conglomerate)) — metamorphic

Metaconglomerate

Metaconglomerate (Quartzite conglomerate)

Schist (Chlorite or Mica-rich) (Chlorite Schist) — metamorphic

Schist (Chlorite or Mica-rich)

Chlorite Schist

Garnet Schist (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Garnet Schist

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

Rhodonite with Manganese Oxides (Rhodonite (Mn,Fe,Mg,Ca)SiO3) — metamorphic

Rhodonite with Manganese Oxides

Rhodonite (Mn,Fe,Mg,Ca)SiO3

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

Gneiss

Gneiss (High-grade metamorphic rock)