Quartzite
Quartzite (primarily SiO2)
metamorphic
Category
Metamorphic Rock
Browse metamorphic rock specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock in the encyclopedia
View all →
Quartz (Pebble)
Quartz (SiO₂)
Mineral
Quartz (specifically Milky/Gray Quartz)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite with Hematite
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)
metamorphic
Micaceous Rock (likely Muscovite Schist/Gneiss or a Muscovite-rich Specimen)
Predominantly Muscovite (KAl2(AlSi3O10)(F,OH)2), often found in rocks like Muscovite Schist or Muscovite Gneiss.
Metamorphic, Mineral (within a rock type)
Gneiss
Gneiss
metamorphic
River Pebbles (Mixed Suite)
Mixed lithologies: Quartzite and Gneiss
metamorphic
River Quartz Pitting / Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Quartzite (tumbled or water-worn)
Quartzite (composition: SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartzite (River Cobble)
Quartzite (SiO2)
metamorphic
Riverstone Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
Metamorphic
Granite Gneiss
Gneiss (Polymetamorphic Quartz-Feldspar-Mica rock)
metamorphic
Quartz (likely Clear Quartz or Rock Crystal)
Quartz (SiO2)
Mineral
Ruby
Corundum (Al2O3 with Chromium trace impurities)
mineral
General Gravel (River Rock/River Stones)
Mixed Lithic Sediments (Conglomerate Clasts)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Anthracite Coal
Anthracite (Carbon-rich metamorphic sedimentary rock)
sedimentary
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Quartz variety (SiO2 with inclusions)
mineral
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Mineral
Pyrite (on Quartz/Host Rock)
Iron Sulfide (FeS₂)
mineral
Quartz (specifically Citrine or Yellow Quartzite pebble)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Greenstone / Metagraywacke
Metamorphosed basaltic or sedimentary rock (Complex Silicate)
metamorphic
River Stones (Quartzite and Sandstone)
Quartzite / Sedimentary Rock (SiO2 dominant)
sedimentary
Quartzite (or Ferruginous Quartzite)
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)
metamorphic