Greenschist
Chlorite Schist (Greenschist Facies)
metamorphic
Category
Mineral, Often Found As A Rock (Metamorphic)
Browse mineral, often found as a rock (metamorphic) specimens identified by the Rock Identifier community.
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Pink Tourmaline (Rubellite)
Elbaite (Tourmaline group) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
mineral
Magnetite with Serpentine
Magnetite (Fe3O4) in Serpentine Matrix
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Epidote with Quartz Vein
Epidote-bearing metamorphic rock with quartz (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Raw Diamond (Rough Uncut)
Diamond (C - pure carbon)
mineral
Epidote (Unakite-related)
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Greenstone / Greenschist
Greenschist facies metamorphic rock
metamorphic
Milky Quartz with Garnet/Hematite and Basalt
Silicon Dioxide (SiO2) with Almandine (Fe3Al2Si3O12) and Basalt
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Banded Serpentine
Serpentine group (subgroup Lizardite or Antigorite) - Mg3Si2O5(OH)4
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Cherty Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Jasper)
Microcrystalline Quartz (SiO2) with hematite impurities
sedimentary
Quartz-veined Granite or Gneiss Pebble
Silicate-rich metamorphic rock fragment
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Lazulite Quartzite
Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)
metamorphic
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline Silica (SiO2)
sedimentary
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Muscovite Mica
Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Slickenside
Tectonic Fault Scarp Surface
metamorphic
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Quartz (Chert/Chalcedony Variety)
Silicon Dioxide (SiO2)
mineral