Gneiss with Quartz Veining
Gneiss (High-grade Metamorphic Rock)
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Gneiss with Quartz Veining
Gneiss (High-grade Metamorphic Rock)
Tumbled Quartz
Silicon Dioxide (SiO2)
Slate
Metamorphic Rock (Fine-grained)
Quartzite River Pebble
Quartzite (primarily Silicon Dioxide, SiO2)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
Quartz-rich rock, possibly milky quartz or quartzite
Quartz (silicon dioxide, SiO₂); if granular and foliated, likely quartzite
Titanium Quartz (Aura Quartz)
Silicon Dioxide (SiO2) treated with Titanium
Schist
Mica Schist
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Fuchsite
Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2
Marble (Carrara style)
Recrystallized Calcite-rich Metamorphic Rock (CaCO3)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Gneiss
Gneiss (High-grade metamorphic rock)
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Gneiss
Gneiss
Gneiss with Quartz Veining
Gneiss (High-grade regional metamorphic rock)
Green Mica Schist
Mica Schist (Fuchsite or Chlorite variety)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of iron oxide)
Clear Quartz Sphere
Quartz (Silicon Dioxide, SiO2)
Gold Ore in Quartz/Schist
Auriferous Quartz and Sulfide-bearing Schist
Mica Schist
Mica Schist (predominantly Muscovite or Biotite series)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Gneiss (Cobble)
Gneiss
Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss (complex metamorphic silicate rock)
Quartzite
Metamorphic Quartz Rock