Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Category
Non Geological
Browse non geological specimens identified by the Rock Identifier community.
Learn about Non Geological in the encyclopedia
View all →
Amber
Succinite (Fossilized Resin)
gemstone
Quartzite River Rock
Metamorphic Rock (Recrystallized Quartz - SiO2)
metamorphic
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Amber (Copal)
Succinite (fossilized resin)
mineral
Anthracite Coal
Anthracite
sedimentary
Snowflake Obsidian
Volcanic Glass with Spherulitic Cristobalite Inclusion
igneous
Basalt
Basalt (Igneous Volcanic Rock)
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Anthracite Coal
Anthracite
sedimentary
Rainbow Obsidian
Volcanic Glass (SiO2 + impurities)
Igneous
Anthracite Coal
Anthracite (Carbon-based organic sedimentary/metamorphic rock)
metamorphic
Basalt
Basalt (Mafic Volcanic Rock)
igneous
Apache Tear
Obsidian (Hydrated Silica Glass)
igneous
Black Opal
Hydrated Silica (SiO2·nH2O)
mineral
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
man-made glass mineral simulant
Tektite (Indochinite)
Tektite (Amorphous silica-rich impact glass)
igneous
Common Opal in Host Rock
Hydrated Silica (SiO2·nH2O)
mineraloid
Spinosaurid Dinosaur Tooth
Spinosaurus aegyptiacus (fossilized)
fossil
Anthracite Coal
Anthracite
metamorphic
Pumice
Pumice (Amorphous volcanic glass)
igneous
Amber
Succinite (specifically for Baltic amber); Fossilized Tree Resin (C10H16O)
Organic Mineraloid
Quartzite (with possible Iron staining)
Meta-orthoquartzite (primarily SiO2)
metamorphic
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Obsidian
Obsidian (Volcanic Glass)
igneous
Anthracite Coal
Anthracite (Carbon-rich metamorphic sedimentary rock)
sedimentary
Coal (likely Anthracite)
Anthracite coal
sedimentary
Limestone (specifically Grainstone or Micrite)
Calcium Carbonate (CaCO3)
sedimentary
Apache Tears (Obsidian)
Hydrated Volcanic Glass (Amorphous SiO2 + H2O)
igneous
Spinosaurus Tooth
Spinosaurus aegyptiacus (fossilized in Hydroxyapatite)
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Obsidian (Polished Point/Wand)
Volcanic Glass (SiO2 with impurities)
igneous
Common Opal
SiO2·nH2O (Hydrated Silicon Dioxide)
mineraloid
Quartzite with Iron Inclusions
Metamorphosed Quartz-rich Rock (SiO2)
metamorphic
Sea Glass
Silica (SiO2) - Amorphous
Mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Snowflake Obsidian
Spherulitic Obsidian (Volcanic glass containing Cristobalite)
igneous
Quartzite
Quartzite (chiefly SiO2)
metamorphic
Quartzite Cobble
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2-rich metamorphic rock)
metamorphic