Sandstone (likely Arkosic or Quartzose)
Arenite (SiO2 based with mineral inclusions)
sedimentary
Category
Manufactured Glass (Simulant)
Browse manufactured glass (simulant) specimens identified by the Rock Identifier community.
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite
sedimentary
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Quartzite Pebble
Recrystallized Quartz (SiO2)
metamorphic
Chert (Iron-stained)
Chert (Silicon Dioxide, SiO2)
sedimentary
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Clear Quartz (Herkimer Diamond variant)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Chert (Iron-rich)
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartz (Quartzite)
Silicon Dioxide (SiO2)
metamorphic
Limestone with Calcite Crystals
Calcium Carbonate (CaCO3)
sedimentary
Chert (variations include Flint/Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz Vein Rock
Quartz (Silicon Dioxide, SiO2)
igneous
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite (with Iron Staining)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Meta-quartzite
metamorphic
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert (often called Flint or Jasper)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary
Milky Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase/Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in Geode form
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
Sedimentary
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
mineral
Sandstone
Arenite
sedimentary
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Arenite (with Iron Oxides)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe2O3 dominant staining)
sedimentary