Quartzite
Quartzite (primarily SiO2)
metamorphic
Category
Manufactured Glass (Simulant)
Browse manufactured glass (simulant) specimens identified by the Rock Identifier community.
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
Igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2) / Rock Crystal
mineral
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Shale
Argillaceous Rock
sedimentary
Massive Quartz (Milky or Gray)
Silicon Dioxide (SiO2)
mineral
Quartzite (specifically an iron-stained or Carnelian-colored variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
metamorphic
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste
Quartzite
Quartzite (primarily SiO2)
metamorphic
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Milk Quartz (Common White Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite (River Cobble)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Sandstone Clast
Arenite (primarily SiO2)
sedimentary
Fluorite (Purple/Blue variety)
Calcium Fluoride (CaF2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Micaceous/Feldspathic variant)
Arenite (specifically subarkose or lithic arenite)
sedimentary
Sandstone (Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Celestine (or Celestite)
Strontium sulfate (SrSO4)
mineral
Sandstone (with Liesegang rings or Oxidation)
Arenite (primarily Quartz SiO2 with Iron Oxide Fe2O3 staining)
sedimentary
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone (Pebble/Cobble)
Arenite (primarily SiO2)
sedimentary
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Quartzite (Milky Quartz Cobble)
Silicon Dioxide (SiO2)
Metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
mineral
Mahogany Obsidian
Volcanic glass (SiO2 with Hematite or Magnetite inclusions)
igneous
Rough Quartz (with Feldspar inclusions)
Silicon Dioxide (SiO2)
Mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartz Pebble
Silicon dioxide (SiO2)
mineral
Quartz / Quartzite Fragment
Silicon Dioxide (SiO2)
mineral / metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite with Sandstone/Iron staining
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite (River Stone)
Quartzite (SiO2)
metamorphic