Quartzite River Rock
Metamorphic Quartzite (SiO2)
metamorphic
Category
None
Browse none specimens identified by the Rock Identifier community.
Learn about None in the encyclopedia
View all →
Quartzite
Quartzite (primarily SiO2)
metamorphic
Black Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Quartzite River Cobble
Quartzite (SiO2)
metamorphic
Snowflake Obsidian
Volcanic Glass with Spherulite inclusions (Amorphous SiO2 + Cristobalite)
igneous
Snowflake Obsidian
Volcanic Glass with Spherulite inclusions (SiO2)
igneous
Black Obsidian
Volcanic Glass (SiO2 + MgO / Fe3O4)
igneous
Siltstone
Siltstone (composed of microscopic quartz and clay minerals)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite cobblestone
Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Quartzite (mostly SiO2)
metamorphic
Riverstone Quartzite (Iron-stained)
Quartzite (primarily SiO2 with Limonite/Goethite staining)
metamorphic
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Man-made rock-like material
Black Obsidian
Volcanic Glass (SiO2 + impurities)
Igneous
Quartzite
Quartzite (SiO2)
metamorphic
Obsidian (Black)
Obsidian (High-silica volcanic glass)
igneous
Quartzite
Quartzite (mostly SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Mahogany Obsidian
Volcanic glass (SiO2 with Hematite or Magnetite inclusions)
igneous
Quartzite (Orthoquartzite)
SiO2 (Silicon Dioxide) with Iron Oxide inclusions
metamorphic
Blue Quartzite (River Pebble)
Quartzite (primarily SiO2 with Dumortierite or Crocidolite inclusions)
metamorphic
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Quartzite
Quartzite (chiefly SiO2)
metamorphic
River Rock (Quartzite)
Quartzite
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite with Quartz Vein
Metamorphosed Quartz-rich Sandstone (SiO2)
metamorphic
Quartzite
Quartzite (predominantly SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite pebble
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Amber
Succinurite (C10H16O)
mineraloid
Quartzite Cobble
Metamorphic Quartz-rich Rock (SiO2)
metamorphic
Fossil Shark Tooth (Sand Tiger or Mackerel Shark)
Carcharias sp. or Otodus sp. replaced by Hydroxylapatite/Calcium Carbonate
sedimentary
Ironstone Concretion (Desert Varnish / Hematite-Goethite Nodule)
Iron oxide / hydroxide deposit (predominantly Fe2O3 and FeO(OH))
sedimentary
Gold in Quartz
Gold (Au) in Quartz (SiO2)
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Amethyst
Quartz (SiO2)
gemstone
Sandstone
Sedimentary Clastic Rock (Quartz-rich)
sedimentary