Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Category
Browse man made glass specimens identified by the Rock Identifier community.
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Pink Feldspar
Orthoclase (KAlSi3O8) or Microcline
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartzite Pebble
Quartzite (primarily SiO2)
Quartz (Quartzite)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2 silicon dioxide)
Quartzite
Quartzite (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Smoky/Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky/Tan)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Chert (Flint)
Chert (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Quartz (worked as a tool or artifact)
Silicon Dioxide (SiO2)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine or Yellow Jasper)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
Peridot
Olivine ((Mg, Fe)2SiO4)
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Granite (weathered)
Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
Granite
Granite (High-silica plutonic rock)
Basalt
Basalt (Mafic volcanic rock)
Limonitic Sandstone with Inclusion
Limonitic Quartz Sandstone (primarily SiO2 with FeO(OH)·nH2O)
Limestone
Calcium Carbonate (CaCO3)
Peridotite (with Olivine)
Peridotite (rich in Olivine, (Mg,Fe)2SiO4)
Chert (specifically Yellow or River Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Red Quartzite Cobble
Quartzite (primarily SiO2)
Chert (Flint Pebble)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)