Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Category
Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)
Browse metamorphic rock (for nephrite and some jadeite); mineral (for jadeite) specimens identified by the Rock Identifier community.
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Greenstone
Metabasalt / Greenschist facies rock
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Tumbled green aventurine
Quartzite dominated by quartz (SiO₂), with green fuchsite mica inclusions
mineral
Gneiss (Metamorphic Rock Pebble)
Foliated Metamorphic Rock (Quartz-Feldspar Gneiss / Granitic Gneiss)
metamorphic
Aquamarine with Sunstone
Aquamarine (Be3Al2Si6O18), Sunstone (Na,Ca)Al(Si,Al)Si2O8
Mineral
Schist
Lepidoblastic Mica Schist
metamorphic
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Likely polished bronzite or serpentine-rich rock
Probable bronzite, an iron-bearing orthopyroxene (Mg,Fe)SiO₃; exact identification requires testing
mineral
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Serpentine
Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
metamorphic
Gneiss (specifically Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic
Granite Gneiss
Felsic Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Schist
Mica Schist
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss (Schistose)
Gneiss
metamorphic
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
mineral
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss
metamorphic
Greenschist
Greenschist facies rock
Metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe)3Si2O5(OH)4)
metamorphic
Gneiss (specifically a Banded Gneiss pebble)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral
Polished green aventurine (probable)
Quartz, SiO₂, with green fuchsite or chlorite inclusions
mineral
Banded Gneiss
Gneiss
metamorphic
Polished serpentine or green jasper pebble
Likely serpentine-group silicate, chiefly antigorite/lizardite; possibly iron-rich jasper
mineral
Gneiss
Gneiss
metamorphic
Probable serpentinite (serpentine-rich rock)
Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), with possible magnetite and olivine remnants
metamorphic
Gneiss
Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)
metamorphic
Granitic Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Greenschist
Greenschist facies metamorphic rock
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral