Rock Identifier

Category

Sedimentary And Metamorphic Minerals

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

Learn about Sedimentary And Metamorphic Minerals in the encyclopedia

Metabasalt

Coal

Metagabbro

Claystone

Calc-Silicate Rock

Calc-Silicate Rock

Shale

Eltyubyuite

Black Shale

Marl

Paracelsian

Schist

Kokchetavite

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Kyanite in Quartz (Kyanite (Al2SiO5) with Quartz (SiO2)) — metamorphic

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2)

Mica-rich metamorphic rock (likely mica schist) (Mica schist, composed mainly of muscovite and/or biotite with quartz and possibly feldspar) — metamorphic

Mica-rich metamorphic rock (likely mica schist)

Mica schist, composed mainly of muscovite and/or biotite with quartz and possibly feldspar

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

Quartz (Milky Quartz / Clear Quartz)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Weathered schist or gneiss fragment (Quartz–feldspar–mica metamorphic rock; likely mica schist or gneiss) — metamorphic

Weathered schist or gneiss fragment

Quartz–feldspar–mica metamorphic rock; likely mica schist or gneiss

Banded gneiss cobble (Gneiss, commonly quartz–feldspar–mica gneiss) — metamorphic

Banded gneiss cobble

Gneiss, commonly quartz–feldspar–mica gneiss

Biotite schist (Mica schist; chiefly quartz, feldspar, and biotite mica) — metamorphic

Biotite schist

Mica schist; chiefly quartz, feldspar, and biotite mica

Dragon Blood Jasper (Epidote with Red Piedmontite (silicate)) — sedimentary

Dragon Blood Jasper

Epidote with Red Piedmontite (silicate)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Polished banded gneiss, possibly garnet-bearing (Gneiss; composition likely quartz–feldspar–mica, with accessory amphibole or garnet) — metamorphic

Polished banded gneiss, possibly garnet-bearing

Gneiss; composition likely quartz–feldspar–mica, with accessory amphibole or garnet

Gneiss (High-grade Metamorphic Gneiss) — metamorphic

Gneiss

High-grade Metamorphic Gneiss

Gneiss (Granitic Gneiss) (Gneiss) — metamorphic

Gneiss (Granitic Gneiss)

Gneiss

Aventurine Quartz (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Aventurine Quartz

Silicon Dioxide (SiO2) with Fuchsite inclusions

Banded gneiss or gneissic schist (Quartz–feldspar–mica gneiss; exact mineral proportions require testing) — metamorphic

Banded gneiss or gneissic schist

Quartz–feldspar–mica gneiss; exact mineral proportions require testing

Rounded granitic gneiss cobble (Foliated quartz–feldspar–mica gneiss; likely granitoid-derived) — metamorphic

Rounded granitic gneiss cobble

Foliated quartz–feldspar–mica gneiss; likely granitoid-derived

Hematite (iron oxide) (Hematite, α-Fe₂O₃) — mineral

Hematite (iron oxide)

Hematite, α-Fe₂O₃

Natural gemstone and mineral collection (Mixed specimens, including turquoise, tiger’s eye, amethyst, fluorite, pyrite, garnet, rose quartz, lapis lazuli, obsidian, rhodonite, red corundum, labradorite, calcite, lepidolite, sodalite, apatite, and others) — mineral

Natural gemstone and mineral collection

Mixed specimens, including turquoise, tiger’s eye, amethyst, fluorite, pyrite, garnet, rose quartz, lapis lazuli, obsidian, rhodonite, red corundum, labradorite, calcite, lepidolite, sodalite, apatite, and others

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Quartz (SiO2 (Silicon dioxide)) — mineral

Quartz

SiO2 (Silicon dioxide)

Blue Quartz (Silicon Dioxide (SiO2)) — mineral

Blue Quartz

Silicon Dioxide (SiO2)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Gray variety)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Gneiss (Foliated Metamorphic Rock) — metamorphic

Gneiss

Foliated Metamorphic Rock

Gneiss (Gneiss (quartz-feldspar-biotite gneiss)) — metamorphic

Gneiss

Gneiss (quartz-feldspar-biotite gneiss)

Granitic Gneiss (Gneiss (Complex silicate composition)) — metamorphic

Granitic Gneiss

Gneiss (Complex silicate composition)

Banded Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic Rock)

Potassium Feldspar (Orthoclase) (Orthoclase (KAlSi3O8)) — mineral

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Tumbled gneiss (Gneiss, chiefly quartz–feldspar with mica and dark ferromagnesian minerals) — metamorphic

Tumbled gneiss

Gneiss, chiefly quartz–feldspar with mica and dark ferromagnesian minerals

Gneiss (Gneiss (Metamorphic rock dominated by Quartz, Feldspar, and various dark minerals)) — metamorphic

Gneiss

Gneiss (Metamorphic rock dominated by Quartz, Feldspar, and various dark minerals)

Likely magnetite (small rough crystal) (Magnetite, Fe₃O₄) — mineral

Likely magnetite (small rough crystal)

Magnetite, Fe₃O₄

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Likely graphite-rich metamorphic rock (graphitic schist) (Graphitic schist; chiefly carbon (graphite) with quartz, mica, and possibly sulfides) — metamorphic

Likely graphite-rich metamorphic rock (graphitic schist)

Graphitic schist; chiefly carbon (graphite) with quartz, mica, and possibly sulfides

Banded gneiss (Gneiss, typically quartz–feldspar–mica ± amphibole) — metamorphic

Banded gneiss

Gneiss, typically quartz–feldspar–mica ± amphibole

Likely weathered gneiss (Foliated metamorphic rock, commonly quartz–feldspar–mica gneiss) — metamorphic

Likely weathered gneiss

Foliated metamorphic rock, commonly quartz–feldspar–mica gneiss