Chert (Flint)
Microcrystalline Quartz (SiO2)
Category
Browse man made glass specimens identified by the Rock Identifier community.
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint/Chalcedony)
Silicon Dioxide (SiO2)
Slag
Ferrous Slag (Siliceous industrial waste)
Chert Nodule
Microcrystalline Quartz (SiO2)
Chert (and/or Flint)
Microcrystalline Quartz (SiO2)
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Slag
Anthropogenic Vitrification Product / Silicate Slag
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Quartzite
Quartzite (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Red Chert (Jasper)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
Chert (often called Flint or Agate nodule)
Cryptocrystalline Quartz (SiO2)
Sandstone
Arenite
Chert (Flint)
Chert (SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (Microcrystalline/Chert)
Silicon Dioxide (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Sea Glass (Turquoise/Aqua)
Amorphous Silica (SiO2) with transition metal dopants
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various metal oxide impurities
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
Chert (often called Flint or Jasper)
Microcrystalline Quartz (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Chert (Flint)
Chert (Cryptocrystalline Silica, SiO2)
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Jasper
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (River Siltstone/Quartzite type)
Microcrystalline Quartz (SiO2)
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Iron Slag
Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
Chert (and Flint)
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Chert Pebble
Chert (Microcrystalline Quartz, SiO2)