Sandstone
Arenite (primarily SiO2)
Category
Browse man made glass specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rough Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz (Herkimer Diamond variant)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
SiO2 (Silicon Dioxide)
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
Yellow Quartz (Chalcedony/Citrine Pebble)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz (or Vein Quartz)
Silicon Dioxide (SiO2)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Quartzite Pebble
Quartzite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite Cobble
Quartzite (SiO2)
Quartz (Variety: Rose Quartz/Smoky Quartz mix)
Silicon Dioxide (SiO2)
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Quartzite
Quartzite (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Chert (with Manganese Dendrites)
Chert (Cryptocrystalline Quartz, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Chert (specifically a fragment with Desert Varnish)
Microcrystalline quartz (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Green Fluorite
Calcium Fluoride (CaF2)
Fluorite (Purple variety)
Calcium Fluoride (CaF2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Hematite (Fe2O3) impurities
Pearl (Imitation or Cultured)
Calcium Carbonate (Aragonite/Calcite) - CaCO3
Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Quartzite Pebbles
Quartzite (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)