Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
sedimentary
Category
Manufactured Glass
Browse manufactured glass specimens identified by the Rock Identifier community.
Orthoclase (Potassium) Feldspar in Quartz
KAlSi3O8 (Potassium Aluminum Silicate)
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Pink Feldspar
Orthoclase Feldspar (KAlSi3O8)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (chiefly SiO2)
metamorphic
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Sandstone (with Limonite staining)
Arenite (primarily SiO2 with FeO(OH)·nH2O)
sedimentary
Sandstone
Arenite (SiO2 with Fe2O3)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz (Water-worn pebble)
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone
Arenite (primarily SiO2 with various cementing agents)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Quartzose)
Arenite (primarily SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Yellow Quartzite Pebble
Quartzite (SiO2)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (variations include Flint or Jasper)
Chert (SiO2)
sedimentary
Quartzite River Rock
Quartzite (Silicon Dioxide, SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Pink/Orange Variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (mainly SiO2)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz River Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Milk Quartz (White Quartz)
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (specifically Milky or Rose Quartz variant)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartzite (Iron-stained Quartzite)
Quartzite with Iron oxides (FeO(OH) / Fe2O3)
metamorphic
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral