Blue Quartzite
Quartzite (primarily SiO2 with inclusions like Dumortierite or Magnesio-riebeckite)
Category
Browse metamorphic rock (formed from a fibrous crocidolite asbestos) specimens identified by the Rock Identifier community.
Blue Quartzite
Quartzite (primarily SiO2 with inclusions like Dumortierite or Magnesio-riebeckite)
Quartz
Quartz (SiO₂ - Silicon Dioxide)
River Cobble (Phyllite or Quartzite)
Metasedimentary Rock (often containing SiO2 or KAl2(AlSi3O10)(OH)2)
Quartzite Pebble (River Rock)
Quartzite (SiO2)
Greenschist (Chlorite Schist)
Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)
Orange Quartzite (or Aventurine Quartz)
Quartzite (primarily SiO2 with Hematite or Goethite inclusions)
Quartzite
Quartzite (mostly SiO2)
Quartzite
Quartzite (primarily SiO2)
Grey Quartzite Pebble
Quartzite (primarily SiO2)
Rose Quartz
Rose Quartz (SiO2)
Quartzite (River Pebble)
SiO2 (recrystallized Quartz)
Moonstone (Feldspar)
Orthoclase or Oligoclase (KAlSi3O8)
Corundum (Sapphire/Ruby in Matrix)
Aluminium oxide (Al2O3)
Red Quartzite River Pebble
Quartzite (SiO2 with iron oxide inclusions)
Green Quartz (Aventurine)
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Mica Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
Lapis Lazuli
Complex mixture of minerals (lazurite, calcite, pyrite, and sodalite); (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Quartz
Quartz (SiO₂)
Quartzite (River Pebble)
Quartzite (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Quartzite (River Stone)
Metamorphosed Quartz Sandstone (SiO2)
Smoky Quartz
Smoky Quartz (SiO ₂)
Quartzite
Quartzite (SiO2)
Pyrite
Pyrite (FeS2)
Orange Quartz with Hematite inclusions
Quartz (SiO2) with Hematite (Fe2O3) inclusions
Shale or Mudstone (Based on appearance)
Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)
Gneiss
Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)
Quartzite River Rock
Quartzite (primarily SiO2)
Quartzite Pebble
Quartzite (predominantly Silicon Dioxide - SiO2)
Granite
Granite (a felsic intrusive igneous rock)
Red Quartzite / Ferruginous Quartzite
Quartzite (primarily SiO2 with Fe2O3 inclusions)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Yellow Quartzite (River Pebble)
Quartzite (primarily SiO2)
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
Aventurine
Aventurine Quartz (SiO2 with inclusions)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Citrine
Citrine (Silicon Dioxide - SiO2)
Kyanite
Kyanite (Al2SiO5)
Pink Quartzite
Quartzite (primarily SiO2)
Quartzite River Cobble
Quartzite (primarily SiO2)
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3