Quartz Pebble
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
View all →
Gneiss (with Quartz and Biotite Mica)
Gneiss
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Greenstone (Greenstone River Pebble)
Greenschist (metamorphosed mafic igneous rock)
metamorphic
Pyrite-bearing rock (iron pyrite)
Pyrite, FeS₂, likely disseminated or massive in a host rock
mineral
Smoky Quartz (with possible Feldspar inclusions)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Clear Quartz fragment)
Silicon Dioxide (SiO2)
mineral
Unakite
Unakite (altered granite)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)
metamorphic
Waterworn greenstone pebble
Likely serpentinite or chlorite-rich metamorphic rock; exact identification requires testing
metamorphic
Unakite
Epidotized Granite
metamorphic
Quartzite with inclusions
Metamorphosed Quartz-rich Rock (SiO2)
metamorphic
White quartz pebble (likely milky quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Quartzite / Sandstone / Chert Mix
Silicon Dioxide (SiO2)
sedimentary and metamorphic
Quartz-rich metamorphic fragment (likely mica schist)
Mica schist, probably muscovite–quartz schist
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Rough Dark Green Sapphire
Corundum (Al2O3)
mineral
Basalt cobble
Basalt; predominantly plagioclase, clinopyroxene, and often olivine or iron-titanium oxides
igneous
Quartzite with inclusions
Metamorphosed quartz sandstone
metamorphic
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Granitic Gneiss
Gneiss (Polymetamorphic Granitic Gneiss)
metamorphic
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Slate
Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite/Biotite)
metamorphic
Unakite
Epidotized Granite
metamorphic
Lapis Lazuli
Lazurite (primary mineral component), (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2
metamorphic
Banded Gneiss
Foliated Gneiss
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite/Biotite)
metamorphic
Charoite
Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)
metamorphic
Gneiss
Gneiss
metamorphic
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Mica Schist
Mica Schist (Complex Silicate Rock)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine-group minerals: (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Yellow Apatite Sphere (Polished)
Fluorapatite / Ca5(PO4)3F
mineral
Rounded greenstone pebble
Likely serpentinite or chlorite-rich metamorphic rock; exact identification requires testing
metamorphic
Green Greenstone / Celadonite-bearing Metamorphic Rock
Greenschist / Celadonite / Serpentinitic pebble
metamorphic
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Citrine Geode Fragment
Citrine (Silicon Dioxide with Iron Impurities), SiO2
mineral
Wishing Stone with Quartz Vein
Hydrothermal Quartz Vein in Metasedimentary Matrix (primarily SiO2)
metamorphic