Quartzite with Hematite staining
Metamorphic Quartzite (SiO2) with Ferruginous Oxides
metamorphic
Category
Sedimentary Or Metamorphic
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Quartzite with Chlorite staining
Metamorphic Quartzite (SiO2 with Chlorite inclusions)
metamorphic
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
metamorphic
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Anthracite Coal
Anthracite (Carbon-based metamorphic rock)
metamorphic
Quartzite (Yellow/Tan)
Metamorphic Rock composed of Quartz (SiO₂)
metamorphic
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
metamorphic
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Granite Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Quartzite Cobble
Metamorphic Quartz-rich Rock (SiO2)
metamorphic
Slate
Phyllo-silicate based metamorphic rock
metamorphic
Anthracite Coal
Low-grade metamorphic carbonaceous rock
metamorphic
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
metamorphic
Slate with Iron Staining
Low-grade Metamorphic Mudstone (Slate)
metamorphic
Quartzite with Quartz Veining
Meta-quartzite (composed primarily of SiO2)
metamorphic
Emerald in Schist (Raw/Tumbled)
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities in Mica Schist
metamorphic
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Mica Schist
Mica Schist (contains Muscovite/Biotite, Quartz)
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Green Schist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Raw Emerald in Schist Matrix
Beryl (Be3Al2Si6O18) in Mica Schist
Mineral in Metamorphic Rock
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Green Quartzite
Quartzite (SiO2 with inclusions)
metamorphic
Red Quartzite
Quartzite (primarily SiO2)
metamorphic
Eclogite
Eclogite (Omphacite + Pyrope-Almandine Garnet)
metamorphic
Greenstone
Greenschist / Meta-basalt
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Schist
Schist (primarily mica-schist)
metamorphic
Quartzite
Quartzite (Silicon Dioxide: SiO2)
metamorphic
Red Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Metagabbro / Epidote Gneiss
Epidote bearing Hornblende Gneiss
metamorphic
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Nuummite
Orthoamphibole (mixture of Anthophyllite and Gedrite)
metamorphic