Dragon Blood Jasper (Epidote with Piedmontite or Quartz)
Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
metamorphic
Category
Metamorphic
Browse metamorphic specimens identified by the Rock Identifier community.
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Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite mica (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Gneiss with Quartz/Feldspar Vein
Quartz-Feldspathic Gneiss
metamorphic
Magnetite / Ironstone
Magnetite (Fe3O4)
mineral
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Muscovite (Mica)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Quartz / Quartzite
Silicon Dioxide (SiO2)
mineral / metamorphic
Magnetite
Magnetite (Fe3O4)
mineral
Black Kyanite
Kyanite (Al2SiO5) with carbonaceous inclusions
mineral
Garnet (Almandine variety)
Almandine, Fe3Al2(SiO4)3
Mineral
Eclogite
Eclogite (Omphacite-Garnet rock)
metamorphic
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Almandine Garnet
Iron aluminum silicate - Fe3Al2(SiO4)3
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Pink Jade (Dyed Quartzite)
Silicon Dioxide (SiO2) - primarily Quartzite or Quartz
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Epidosite
Epidosite (composed mainly of Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
metamorphic
Garnet (Almandine)
Almandine, Fe3Al2(SiO4)3
metamorphic
Schist
Mica Schist
metamorphic
Iolite (Cordierite)
Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18
metamorphic
Fuchsite on Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Epidote
Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Mineral
Schist
N/A (a rock type, not a mineral formula)
metamorphic
Quartzite (or Massive Quartz)
Silicon Dioxide (SiO2)
metamorphic
Fairy Stone (Staurolite Concretion)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Blue Quartzite (Aventurine)
Quartzite (primarily SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
metamorphic
Granite Gneiss
Gneiss (derived from granitic protolith)
metamorphic
Gneiss
High-grade regional metamorphic rock (Foliated Gneiss)
metamorphic
Quartz Vein in Siltstone
Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix
metamorphic
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Shungite
Non-crystalline carbon (high-carbon metamorphic rock)
metamorphic
Feldspathic Gneiss
Feldspathic Gneiss (High-grade regional metamorphic rock)
metamorphic
Mica Schist
Medium-grade regional metamorphic rock (composition varies)
metamorphic
Red Quartzite
Metamorphic Quartzite (predominantly SiO2 with iron oxide impurities)
metamorphic
Schist
Mica Schist (Group of medium-grade metamorphic rocks)
metamorphic
Quartzite with Iron Inclusions
Metamorphic Silicon Dioxide (SiO2) with impure Limonite/Hematite
metamorphic