Red Quartzite
Quartzite (primarily SiO2)
Category
Browse metamorphic rock (formed from a fibrous crocidolite asbestos) specimens identified by the Rock Identifier community.
Red Quartzite
Quartzite (primarily SiO2)
Jasper in Quartzite (likely Cinnabar or Iron inclusions)
Silicon dioxide (SiO2) with impurities
Quartzite pebble
Quartzite (primarily SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
Quartzite
Quartzite (SiO2)
Quartzite Cobble
Quartzite (primarily SiO2)
Green Aventurine (Green Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Quartz (likely a clear or rock crystal variety)
Quartz (SiO2 - Silicon Dioxide)
Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with inclusions of Dumortierite or similar minerals
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Agate
Agate (Cryptocrystalline Variety of Quartz, SiO2)
Wishing Stone with Quartz Vein
Hydrothermal Quartz Vein in Metasedimentary Matrix (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite with Hematite
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)
Lapis Lazuli
Lapis Lazuli (Rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, Pyrite, and Calcite)
Seraphinite (Clinochlore)
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Blue Quartzite
Quartzite (specifically a variety enriched with blue-coloring minerals)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Aluminum borate silicate)
Quartzite (Potentially Ferruginous)
Quartzite (SiO2)
Quartz (Float/Abraded)
Quartz (SiO₂)
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Jasper and Quartz River Cobble
Silicon Dioxide (SiO2) with Hematite inclusions
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Quartzite
Quartzite (primarily SiO2)
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Quartzite River Stone
Quartzite (primarily SiO2)
Charoite
Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)
Prehnite
Prehnite Ca2Al2Si3O10(OH)2
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite pebble
Quartzite (SiO2)
Quartz vein in Host Rock
Crystalline Silicon Dioxide (SiO2) in Lithic Matrix
Black Marble
Recrystallized Limestone (CaCO3)
Soapstone
Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)
Fuchsite Quartzite
Fuchsite-bearing Quartzite