Manufactured Glass (Simulant)

Sandstone

Arenite

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite river stone

Quartzite (SiO2)

Sandstone (Quartzite-rich Cobble)

Clastic sedimentary rock (primarily SiO2)

White Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Quartz Sand

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Sedimentary Sandstone with Iron Oxide

Ferruginous Sandstone

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone

Arenite (SiO2 primarily)

Milky Quartz

Quartz (SiO2)

Sandstone (Iron-stained)

Arenite (primarily SiO2 with Fe2O3 staining)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Sandstone (Banded)

Arenite (primarily SiO2)

Quartz (Bull Quartz)

Silicon Dioxide (SiO2)

Milk Quartz (Snow Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Sandstone (clastic sedimentary rock, mainly SiO2 with iron oxide cement)

Quartzite with Hematite staining

Metamorphosed Quartz Sandstone (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite (River Stone)

Quartzite (SiO2)

Sandstone

Arenite (specifically Iron-stained Quartz Sandstone)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Sandstone (with biological crust)

Arenite (SiO2 based)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite pebble

Quartzite (primarily SiO2)

Sandstone

Arenite (SiO2, often with CaCO3 or Fe2O3 cement)

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone Cobble

Arenite (predominantly Quartz Sandstone)

Sandstone or Limestone

Arenite or Calcareous Sedimentary Rock

Quartz pebble

Silicon dioxide (SiO2)