Manufactured Glass

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Metamorphic Quartzite (SiO2)

Quartz pebble

Silicon Dioxide (SiO2)

Sandstone

Clastic Sedimentary Rock

Quartz Pebble

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartzite

Metamorphic Quartzite (SiO2)

Quartz (Smoky/Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone

Clastic sedimentary rock (Quartz arenite)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone

Sedimentary Rock (Quartz Arenite)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz / Quartz Geode Fragment

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite Pebble

Quartzite (SiO2)

Sandstone

Clastic sedimentary rock (Quartz arenite / Arkose)

Quartz (Smoky or Citrine variety)

Silicon Dioxide (SiO2)

Sandstone

Arenite (SiO2 based)

Limestone (containing Fossil Mold)

Sedimentary Calcium Carbonate (CaCO3)

Sandstone (Quartzose)

Arenite (SiO2 based)

Quartzite

Quartzite (SiO2)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Quartzite Pebble

Quartzite (SiO2)

Iron-stained Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Sandstone

Sedimentary Rock (Quartz arenite)

Quartzite Pebble

Quartzite (primarily SiO2)

Quartz (Chalcedony)

Silicon Dioxide (SiO2)

Quartzite (River Pebble)

Meta-quartzite (composed primarily of SiO2)

Sandstone

Arenite (primarily SiO2)

Green Glass Cullet / Recycled Glass

Amorphous Silicon Dioxide (SiO2) with various metal oxides

Milky Quartz (Ferruginous variety)

Silicon Dioxide (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Sandstone

Sedimentary Rock (Quartz Arenite)

Quartzite

Quartzite (Mostly SiO2)

Quartzite

Metamorphic Quartzite

Quartzite

Quartzite (Metamorphosed Quartz Sandstone)

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Limestone

Calcium Carbonate (CaCO3)

Quartzite

Quartzite (primarily SiO2)