Aragonite
Aragonite (Calcium Carbonate - CaCO3)
Category
Browse man made glass specimens identified by the Rock Identifier community.
Aragonite
Aragonite (Calcium Carbonate - CaCO3)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Goldstone and Aura Quartz
Cuprous Glass (Goldstone) and Titanium-coated SiO2 (Aura Quartz)
Chert (with Limestone matrix)
Silicon dioxide (SiO2)
Chert (Jasper/Flint)
Silicon Dioxide (SiO2)
Chert (Yellow Jasper/Flint pebble)
Microcrystalline Quartz (SiO2)
Chert (Chert / Flint)
Microcrystalline Quartz (SiO2)
Slag Glass (Cullet)
Amorphous Silica / Glass residue
Jasper
Silicon dioxide (SiO2) with impurities
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
Chert (Flinty variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Obsidian
Volcanic Glass (Amorphous SiO2)
Sandstone
Arenite (mostly SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (with iron oxide cement)
Chert / Flint
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic Felsic Igneous Rock (composed of orthoclase, quartz, and plagioclase)
Sandstone
Arenite (specifically sublithic or quartz arenite)
Sandstone (Quartz Arenite)
Sandstone (dominated by SiO2 quartz grains)
Chert
Microcrystalline Quartz (SiO2)
Quartzite
Quartzite (SiO2)
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Smoky Quartz
Silicon Dioxide (SiO2) with trace aluminum and irradiation
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Sandstone
Arenite
Banded Chert (River Stone)
Silicon Dioxide (SiO2)
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
Sandstone
Arenite (SiO2 composition dominant)
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 based clastic rock)
Sandstone
Arenite (composed primarily of SiO2)
Beach Pebble (Chalcedony / Chert)
Silicon Dioxide (SiO2)
Chert (varieties: Flint or Jasper)
Silicon dioxide (SiO2) / Microcrystalline Quartz
Sandstone (likely Quartzose)
Clastic sedimentary rock (SiO2 primary)
Chert (with nodule)
Microcrystalline Quartz (SiO2)