Gneiss
Foliated Metamorphic Rock (Gneiss)
Category
Browse metamorphic specimens identified by the Rock Identifier community.
Gneiss
Foliated Metamorphic Rock (Gneiss)
Gneiss (likely)
Gneiss
Quartzite (River Pebble)
Recrystallized Quartz (SiO2)
Schist
Mica Schist
Greenschist (Greenstone)
Chlorite schist (primarily Chlorite-Epidote-Actinolite-Albite)
Glaucophane Schist (Blueschist)
Blueschist (Glaucophane-bearing schist)
Quartz
Quartz (SiO2)
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Mica Schist (Garnetiferous)
Garnet-Mica Schist
Green Schist
Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Jadeite (Jade)
NaAlSi2O6 (Sodium Aluminum Silicate)
Garnet in Schist (Polished Tower)
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
Schist
Mica Schist
Greenschist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
Greenschist
Greenschist (comprising Actinolite, Chlorite, and Epidote)
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
Blue Quartzite
Quartzite (silicon dioxide, SiO2)
Quartz Vein in Schist
Quartz (SiO2) in Mica Schist
Gneiss
Gneiss
Greenschist
Chlorite schist
Greenschist (Chlorite Schist)
Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)
Slate with Quartz
Low-grade Metamorphic Slate with SiO2 inclusions
Slate
Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)
Greenschist
Greenschist (Major minerals include Chlorite, Actinolite, and Epidote)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
Schist
Mica Schist
Yellow Quartz (Citrine/Yellow Chalcedony)
Silicon Dioxide (SiO2)
Schist
Mica Schist
Muscovite Schist
Muscovite (KAl2(AlSi3O10)(OH)2) in Schist
Mica Schist with Garnet
Garnetiferous Mica Schist
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Garnet Schist
Almandine Garnet Schist
Milky Quartz
Silicon Dioxide (SiO2)
Red Quartzite Slipper Stone
Quartzite (SiO2)
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)
Schist
Mica Schist
Schist
Mica Schist
Milky Quartz
Quartz / Silicon Dioxide (SiO2)