Slate
Foliated Metamorphic Rock (Mainly composed of Quartz, Illite, Chlorite)
metamorphic
Category
Metamorphic (Low Grade)
Browse metamorphic (low grade) specimens identified by the Rock Identifier community.
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Greenstone (Epidosite / Chlorite Schist)
Metabasalt (often contains Epidote Ca2Al2(Fe3+,Al)(SiO4)(Si2O7)O(OH) or Chlorite)
metamorphic
Slate
Slate (Foliated metamorphic rock consisting mainly of quartz and muscovite or illite)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)
metamorphic
Greenstone
Metabasalt / Greenschist facies rock
metamorphic
Slate
Foliated low-grade metamorphic rock
metamorphic
Greenstone / Metagraywacke
Metamorphosed basaltic or sedimentary rock (Complex Silicate)
metamorphic
Greenstone (Altered Mafic Rock)
Greenschist / Meta-basalt
metamorphic
Greenstone (Epidosite or Altered Basalt)
Epidosite (Ca2(Al, Fe)3(SiO4)3(OH))
metamorphic
Greenstone (Greenstone River Pebble)
Greenschist (metamorphosed mafic igneous rock)
metamorphic
Greenstone
Metabasalt (Greenstone Facies)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)
metamorphic
Greenstone
Chlorite schist / Meta-basalt
metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Prehnite
Prehnite, Ca2Al2Si3O10(OH)2
mineral
Greenstone
Greenschist
metamorphic
Greenstone
Protolith: Basaltic rock
metamorphic
Slate
Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)
metamorphic
Greenstone / Metabasalt
Metamorphosed Mafic Rock (Greenschist facies)
metamorphic
Slate
Foliated Metamorphic Rock (composed of quartz, illite, and chlorite)
metamorphic
Greenstone
Greenschist (commonly containing Chlorite, Actinolite, and Epidote)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)
metamorphic
Greenstone
Greenschist (composed of chlorite, actinolite, and epidote)
metamorphic
Greenstone / Greenschist
Greenschist (metamorphosed mafic rock)
metamorphic
Greenstone
Greenschist
metamorphic
Greenstone
Metabasalt (composed mainly of chlorite, epidote, and actinolite)
metamorphic
Greenstone (Metabaltic/Greenschist)
Chlorite schist / Meta-basalt
metamorphic
Greenstone / Greenschist
Chlorite schist / Epidiorite
metamorphic
Greenschist (Greenstone)
Greenschist (Metamorphic rock containing chlorite, actinolite, and epidote)
metamorphic
Greenschist
Chlorite-actinolite schist
metamorphic
Greenstone
Metabasalt / Chlorite-Epidote Schist
metamorphic
Greenstone
Greenschist / Greenstone (contains epidote, chlorite, and actinolite)
metamorphic
Greenstone
Greenschist / Meta-basalt
metamorphic
Greenstone with Epidote or Quartz veins
Metabasalt (Greenstone facies)
metamorphic
Slate
Foliated Metamorphic Rock (composed primarily of Quartz, Muscovite, and Illite)
metamorphic
Gray Slate River Stone
Slate
metamorphic
Fuchsite (Chrome Mica)
K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Slate
Foliated Metamorphic Slate
metamorphic
Greenstone
Metabasalt (Greenstone)
metamorphic
Greenschist
Greenschist (Chlorite Schist facies)
metamorphic
Greenstone (Metabalt)
Chlorite schist / Altered Basalt
metamorphic
Slate
Slate
metamorphic