Slate
Slate (Metamorphic Rock)
metamorphic
Category
Mineral In Metamorphic Rock
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
metamorphic
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Granite Gneiss with Garnet
Garnetiferous Gneiss
metamorphic
Quartz Vein in Host Rock (Breccia/Rhyolite)
Silicon Dioxide (SiO2) with matrix
Mineral in Igneous/Sedimentary host
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Greenschist (containing Epidote and Quartz)
Greenschist (Epidote-Chlorite-Actinolite Schist)
metamorphic
Quartz
Quartz (SiO2)
Mineral
Clay Brick
Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)
metamorphic (man-made/anthropogenic)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
mineral
Mica Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pyrite in Matrix (Quartz/Schist)
Iron Sulfide (FeS2)
mineral
Greenstone
Metamorphosed Mafic Igneous Rock
metamorphic
Biotite Mica
K(Mg,Fe)3AlSi3O10(OH)2
Mineral in a matrix (likely quartz or feldspar)
Quartzite with Hematite staining
Quartzite (SiO2) with iron oxide inclusions
metamorphic
Lapis Lazuli
Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)
metamorphic
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Al2O3) with Chromium traces
mineral
Serpentinite
Serpentinite (group of hydrous magnesium iron phyllosilicates)
metamorphic
Blue Sapphire
Corundum (Al2O3)
mineral
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Lapis Lazuli
Complex rock primarily containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
metamorphic
Quartz / Quartzite
Quartz (Silicon Dioxide, SiO2)
metamorphic
Granite / Gneiss Complex
Felsic Plutonic Rock (Granite) or High-grade Metamorphic Rock (Gneiss)
igneous/metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Ruby in Kyanite
Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)
metamorphic