Sandstone (with potential iron-oxide staining)
Arenite (primarily SiO2)
Category
Browse manufactured glass specimens identified by the Rock Identifier community.
Sandstone (with potential iron-oxide staining)
Arenite (primarily SiO2)
Lepidolite on Pegmatite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) in Granitic Pegmatite
White Quartz Pebble
Silicon Dioxide (SiO2)
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
Sandstone
Arenite (composed of SiO2, CaCO3, or iron oxides)
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Sandstone
Arenite (primarily SiO2)
Clear Quartz
SiO2 (Silicon Dioxide)
Sandstone
Arenite (composed primarily of SiO2)
Carborundum
Silicon Carbide (SiC)
Raw Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble with Matrix
Silicon Dioxide (SiO2)
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Faceted Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite with Quartz Vein
Quartzite (primarily SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Clear Quartz (Crystal Quartz)
Silicon Dioxide (SiO2)
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Fluorite and Mineral Collection
Calcium Fluoride (CaF2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Granular)
Silicon Dioxide (SiO2)
Quartz Pebble (Grit)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky Variety)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)