Sandstone
Sedimentary rock composed mainly of quartz sand
sedimentary
Category
Synthetic Glass
Browse synthetic glass specimens identified by the Rock Identifier community.
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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
Milky Quartz Pebble
Silicon Dioxide (SiO2)
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
Milky Quartz
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
Arenite (SiO2 principal)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (with Chert/Quartzite)
Arenite (SiO2 primarily)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartzite River Rock
Quartzite (SiO2)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartz (Iron-Stained)
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Quartz Pebble (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
sedimentary
Sandstone
Arenite (Siliclastic sedimentary rock)
sedimentary
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
sedimentary
Weathered granitic rock
Granite or granodiorite; mainly quartz, feldspar, and mica/amphibole
igneous
Pink Quartzite Rock
Quartzite (mostly SiO2 with trace Fe2O3)
metamorphic
Quartzite
Quartzite (mostly SiO2)
metamorphic
Quartzite River Rock
Quartzite (primarily SiO2)
metamorphic
Chert Pebble
Microcrystalline Quartz (SiO2)
sedimentary