Slate
Slate (Metamorphic Rock)
metamorphic
Category
Sedimentary Or Metamorphic (Low Grade)
Browse sedimentary or metamorphic (low grade) specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Metamorphic (Low Grade) in the encyclopedia
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Likely banded gneiss
Gneiss, a foliated metamorphic rock composed chiefly of quartz, feldspar, and mica
metamorphic
Anthracite Coal
Anthracite (Carbon rank grade)
sedimentary
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Black Slate
Slate (Metamorphic Rock)
metamorphic
Greenstone
Greenschist / Meta-basalt
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite in Quartz
Iron Sulfide in Silicon Dioxide (FeS2 + SiO2)
mineral
Greenschist
Chlorite schist
metamorphic
Quartz Veined Mudstone
Metasedimentary rock with Quartz (SiO2) veins
metamorphic
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2) matrix
metamorphic
Schist
Metamorphic Rock (Schist)
metamorphic
Citrine
Silicon dioxide (Quartz variety), SiO2
mineral
Greenschist
Chlorite Schist
metamorphic
Slate fragment
Slate; predominantly fine-grained mica/clay minerals, commonly muscovite, chlorite, and quartz
metamorphic
Green Slate (Greenstone)
Metamorphic shale (varied composition)
metamorphic
Pyrite
Iron Disulfide (FeS2)
mineral
Foliated slate or phyllite
Fine-grained metamorphosed mudstone; typically quartz, mica, chlorite, and clay-derived minerals
metamorphic
Banded Slate
Slate (Metamorphosed Siltstone/Mudstone)
metamorphic
Limonite
FeO(OH)•nH2O
mineral
Greenschist
Chlorite schist
metamorphic
Greenschist
Greenschist (containing Chlorite, Actinolite, and Epidote)
metamorphic
Riverstone (likely Gray Slate or Siltstone)
Metamorphosed fine-grained sedimentary rock (Argillite/Slate)
metamorphic
Epidote
Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Slate
Slate (Foliated Metamorphic Rock)
metamorphic
Slate
Slate (foliated metamorphic rock)
metamorphic
Slate
Low-grade Metamorphic Rock (composed of quartz, illite, chlorite)
metamorphic
Siltstone / Slate
Siltstone / Low-grade Slate
sedimentary
Slate
Slate (Low-grade regional metamorphic rock)
metamorphic
Slate
Foliated metamorphic rock
metamorphic
Greenstone
Metabasalt / Chlorite-actinolite schist
metamorphic
Greenstone
Metabasalt
metamorphic
Greenstone
Metabasalt / Greenschist facies rock
metamorphic
Greenstone
Metabasalt
metamorphic
Slate with Pyrite Inclusions
Foliated Metamorphic Rock (with Iron Sulfide FE-S2)
metamorphic
Slate
Metamorphic Argillite
metamorphic
Slate
Slate (foliated metamorphic rock)
metamorphic
Slate
Foliated Metamorphic Rock
metamorphic
Banded Slate Pebble
Metamorphosed Mudstone / Slate
metamorphic
Banded Slate (Lithified Mudstone)
Low-grade Metamorphosed Mudstone / Slate
metamorphic
Epidote
Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Schist (containing Muscovite Mica and Chlorite)
Mica Schist
metamorphic