Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Category
Manufactured Glass (Simulant)
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Tumbled goldstone-like quartz pebble
Likely iron-stained quartz or jasper; exact identification requires testing
mineral
Likely pink feldspar (orthoclase or microcline)
Potassium feldspar, KAlSi₃O₈
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 composition dominant)
sedimentary
Milky Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (Sandstone)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Sedimentary rock composed mainly of quartz sand
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Feldspar (Plagioclase / Potassium Feldspar)
Feldspar Group (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Sandstone or Weathered Conglomerate
Sedimentary Rock (Quartzose Sandstone / Lithic Arenite)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary
Quartz Arenite / Sandstone
Quartz sandstone (SiO2 rich clastic sedimentary rock)
sedimentary
Sandstone
Clastic sedimentary rock
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone Pebble
Sedimentary Clastic Rock (Quartz Arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sand and Gravel (Quartz-rich)
Unconsolidated fluvial/beach sediment (primarily Silica/SiO2)
sedimentary
Sandstone
Arenite (mainly SiO2 with varying cements)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary