Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Category
Mineral In Metamorphic Rock
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Learn about Mineral In Metamorphic Rock in the encyclopedia
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Greenstone / Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
metamorphic
Emerald in Matrix
Beryl (Be3Al2(SiO3)6) embedded in schist or pegmatite host rock
mineral
Schist
Schist (primarily mica-schist)
metamorphic
Greenstone
Metamorphic Rock (Greenschist facies)
metamorphic
Mica Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Banded Gneiss (Variety of Gneiss)
Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)
Metamorphic Rock
Mixed rock and mineral collection
Mixed lithologies; likely quartz, feldspar, basalt, granite, chert, sandstone, and metamorphic rocks
igneous, sedimentary, metamorphic, mineral
Greenstone Pebble
Metabasalt (often containing chlorite, actinolite, or epidote)
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (composed primarily of serpentine group minerals including antigorite, chrysotile, and lizardite)
metamorphic
Mica Schist
Schist (primarily muscovite and quartz)
metamorphic
Gneiss pebble
Banded gneiss, commonly quartz–feldspar–biotite gneiss
metamorphic
Beryl (likely Aquamarine) in matrix
Be3Al2(SiO3)6 (Beryllium Aluminum Silicate)
mineral
Gneiss
Gneiss
metamorphic
Greenish rock with white veins, possibly epidote or chlorite bearing rock with quartz/calcite veins
Altered mafic rock or Epidosite
metamorphic or igneous alteration
Quartzite
Metamorphosed Quartz Sandstone
metamorphic
Gneiss
Gneiss
metamorphic
Copper-bearing Mica Schist
Mica Schist with Native Copper inclusions
metamorphic
Unknown Rock Fragment
Unknown
unknown
Quartzite
Quartzite (SiO2)
metamorphic
Rough Garnet in Matrix
Almandine Garnet (Fe3Al2Si3O12)
mineral
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
mineral
Gneiss (specifically a Granitic Gneiss)
Gneiss (Composition: Quartz, Feldspar, Mica)
metamorphic
Dark mafic rock, likely basalt
Basalt (fine-grained assemblage chiefly plagioclase and pyroxene, commonly with olivine and iron oxides)
igneous
Gold-bearing Quartz / Auriferous River Rock
Lode Gold in Quartz Matrix (SiO2 + Au)
sedimentary
Probable serpentinite (serpentine-rich rock)
Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), with possible magnetite and olivine remnants
metamorphic
Dark rounded pebble, likely basalt
Basalt (fine-grained mafic volcanic rock; commonly plagioclase, pyroxene, and olivine)
igneous
Gneiss
Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)
metamorphic
Gneiss (River Cobble)
Metamorphic Gneiss
metamorphic
Blue Sapphire
Corundum (Al2O3)
mineral
Blue Quartzite (Blue Aventurine)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebbeckite
metamorphic
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Biotite (Black Mica) in Host Rock
K(Mg,Fe)3AlSi3O10(OH,F)2
mineral
Shale
Shale (comprised mostly of clay minerals and quartz)
sedimentary
Quartzite
Quartzite
Metamorphic
Milky Quartz with Iron Inclusions
Crystalline Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Serpentine Jade (New Jade/Olive Jade)
Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite
Mineral
Quartz Vein in Host Rock (Gabbro or Basalt)
Silicon Dioxide (SiO2) with Mafic Silicates
metamorphic/igneous
Milky Quartz (Crystal Cluster)
Silicon Dioxide (SiO2) - Quartz Variety
mineral