Manufactured Glass

Quartz Druzy on Matrix (with Copper Mineralization)

Silicon Dioxide (SiO2) with Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O)

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Feldspar (Orthoclase)

Potassium Feldspar (KAlSi3O8)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone (Ferruginous)

Arenite (Fe-rich)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

White Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone

Arenite (Sedimentary Rock)

Sandstone

Arenite (primarily SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Oolitic Limestone

Oolite (Sedimentary Calcium Carbonate)

Sandstone (Red)

Arenite (SiO2 with Fe2O3)

Quartzite

Quartzite (SiO2)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Sandstone (Quartzose Sandstone)

Arenite (SiO2)

Sandstone

Arenite (primarily Quartz, SiO2)

Sandstone

Arenite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Red Sandstone

Arenite (with Iron Oxide pigmentation)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone

Arenite (primarily Quartz, SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Quartz Pebble (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Synthetic Sapphire and Ion-X Glass

Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass

Quartzite

Quartzite (primarily SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Scoria

Vesicular Basaltic Glass

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz (Smoky/Grey Variety)

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (with inclusions)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)