Manufactured Glass (Simulant)

Milky Quartz

Silicon Dioxide (SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Sandstone

Arenite (primarily SiO2)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartzite (with Metamorphic Foliation)

Quartzite (Recrystallized SiO2)

Sandstone (likely Arkosic or Lithic Sandstone)

Arenite (SiO2 based with mineral inclusions)

Sandstone

Arenite

Clear/White Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Rose or Clear variety)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Sandstone

Arenite (SiO2 primarily)

Milky Quartz (with Iron Oxide staining)

Silicon Dioxide (SiO2)

Quartzite pebble

Quartzite (SiO2)

River Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky Quartz/Citrine Type)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz / Quartzite

Silicon Dioxide (SiO2)

Milky Quartz (with Chlorite/Mineral Inclusions)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

White Quartz

Silicon Dioxide (SiO2)

Gray Quartz (Tumbled)

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Sandstone (Red)

Arenite (primarily Quartz, SiO2, with Iron Oxide cement)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Quartzite Pebble

Quartzite (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (chiefly SiO2)

Quartz (Crystal Point/Fragment)

Silicon Dioxide (SiO2)

Potassium Feldspar (Orthoclase)

KAlSi3O8

Quartzite

Quartzite (principally SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone

Arenite (primarily SiO2)

Quartzite with Chlorite

Metamosphosed Quartz Sandstone (SiO2 with (Mg,Fe)3(Si,Al)4O10(OH)2 inclusions)

Quartzite

Quartzite (SiO2)

Sandstone with Tafoni Weathering

Arenite (SiO2 based)

Pink Orthoclase Feldspar with Dendrites

Orthoclase (KAlSi3O8) with Manganese Oxide dendrites

Sandstone (Weathered Pebble)

Arenite (SiO2 primarily)