Greenstone
Greenschist / Greenstone (containing Chlorite, Epidote, Actinolite)
metamorphic
Category
Metamorphic Rock (Formed From A Fibrous Crocidolite Asbestos)
Browse metamorphic rock (formed from a fibrous crocidolite asbestos) specimens identified by the Rock Identifier community.
Quartzite Pebble (River Rock)
Quartzite (SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Diamond Drill Core (Greenschist and Quartzite)
Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)
metamorphic
Epidosite (Epidote-rich rock)
Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
metamorphic
Quartzite
Quartzite (Primary mineral: Quartz, SiO2)
metamorphic
Quartz (Quartzite fragment)
Silicon Dioxide (SiO2)
mineral
Green Quartzite
Quartzite (primarily SiO2 with chlorite inclusions)
metamorphic
Quartzite
Quartzite
Metamorphic
Quartz / Quartzite
Quartz (Silicon Dioxide, SiO2)
metamorphic
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Rock (likely Sedimentary)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Unakite
Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Marble
Metamorphosed Limestone/Dolomite
metamorphic
Citrine
Silicon Dioxide (SiO2)
mineral
Banded Calcite or Travertine
Calcium Carbonate (CaCO3)
Sedimentary
Quartz Vein in Host Rock (Likely Slate or Shale)
Hydrothermal Quartz (SiO2) in Pelitic host rock
metamorphic
Quartz-veined Schist (or Metasandstone)
Metamorphic Rock with Quartz Veining (SiO2)
metamorphic
Quartzite
Quartzite
Metamorphic rock
Quartz Vein in Host Rock (Gabbro or Basalt)
Silicon Dioxide (SiO2) with Mafic Silicates
metamorphic/igneous
Pink Granite / Gneiss
Felsic Plutonic Rock (Granite) with Gneissic banding
igneous / metamorphic
Calcite (Yellow/Orange variety - sometimes called Honey Calcite)
Calcite
Mineral
Garnet Schist or Garnet-bearing Quartzite
Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)
metamorphic
Quartz Vein in Host Rock (Breccia/Rhyolite)
Silicon Dioxide (SiO2) with matrix
Mineral in Igneous/Sedimentary host
Quartz / Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Granite Gneiss
Felsic Gneiss
metamorphic
Schist
Mica Schist (Quartz-Muscovite-Biotite Schist)
metamorphic
River Quartzite (or Quartz Cobble)
Quartzite (primarily Silicon Dioxide - SiO2)
metamorphic
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
mineral
Biotite Schist with Garnet
Garnet-Biotite Schist
metamorphic
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Metamorphic
Mica Schist
Mica Schist (Predominantly Muscovite/Biotite)
metamorphic
Quartzite (or Milky Quartz pebble)
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
mineral
Mica Schist
Crystalline Schist (often primarily Muscovite or Biotite sheet silicates)
metamorphic
Unakite
Unakite (altered granite)
metamorphic