Tiger's Eye (Brown/Dark variety)
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
metamorphic
Category
Metamorphic Mineral
Browse metamorphic mineral specimens identified by the Rock Identifier community.
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Fuchsite
Chromium-bearing Muscovite - K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Gneiss (Metamorphic Rock)
Gneiss
metamorphic
Specular Hematite (on Schist/Matrix)
Hematite (Alpha-Fe2O3)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2 mixed with SiO2)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Greisen
Greisen
Metamorphic
Amazonite
K(AlSi3O8)
mineral
Biotite Schist
Biotite Schist
Metamorphic
Green Slate (Greenstone)
Metamorphic shale (varied composition)
metamorphic
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
mineral
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Mica Schist
Schist (Crystalline metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Lapis Lazuli
Lapis Lazuli (Mineral composition: Lazurite, Calcite, Sodalite, and Pyrite)
metamorphic
Arsenopyrite
Arsenopyrite (FeAsS)
mineral
Garnet Schist
Almandine-mica schist
metamorphic
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Mineral
Pyrite-bearing Schist
Pyritic Quartz-Mica Schist with FeS2 inclusion
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Garnet
Garnet group (X3Y2(SiO4)3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Lapis Lazuli
Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)
metamorphic
Quartzite River Rock with Dendrites
Metamorphosed Quartz-rich Sandstone with Manganese Oxide (MnO2) inclusions
metamorphic
Granite Gneiss
Granitic Gneiss
Metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 containing Fuchsite)
metamorphic
Granitic Pegmatite (Muscovite and Quartz)
Pegmatite (KAl2(AlSi3O10)(OH)2 / SiO2)
igneous
Pyrite
Iron Pyrite (FeS2)
Mineral
Sapphire in a ring
Corundum (Al2O3)
mineral
Lapis Lazuli (Tumbled)
Lazurite-dominated contact metamorphic rock
metamorphic
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidote and Quartz)
metamorphic