Jasper and Agate Beads (Mahogany Obsidian, Dyed Agate, Turquoise/African Turquoise)
Silicon Dioxide (SiO2) mixture with inclusions / Hydrated Copper Aluminum Phosphate
gemstone
Category
Synthetic (Man Made Glass)
Browse synthetic (man made glass) specimens identified by the Rock Identifier community.
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Snowflake Obsidian
Volcanic glass containing Spherulitic inclusions (SiO2 + impurities)
igneous
Snowflake Obsidian
Volcanic glass containing Cristobalite (SiO2)
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Diamond (or diamond simulant)
C
gemstone
Obsidian
Volcanic Glass (predominantly SiO2)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Tektite (Indochinite)
Tektite (SiO2 + Al2O3)
mineraloid
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
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
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
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
Sandstone
Quartz Arenite / Sedimentary Rock
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Limonite
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
Milky Quartz
Silicon Dioxide (SiO2)
mineral