Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse mineral simulant (synthetic glass) specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Amethyst (Druze)
Silicon Dioxide (SiO2) with iron impurities
Amethyst
Silicon dioxide with iron impurities (SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 oxides)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Fe-bearing Clastic Sedimentary Rock)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine appearance)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
Labradorite (Feldspar)
Labradorite: (Ca,Na)(Al,Si)4O8
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline or cryptocrystalline quartz (SiO2)
Chert (Brecciated Chert)
Silicon Dioxide (SiO2)
Quartzite with Iron Inclusions
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3)
Sandstone
Arenite (SiO2 with Fe2O3)
Chert (Cherty Limestone / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Ferruginous Quartz (Iron-stained Quartzite)
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix
Chert (Flint/Chalcedony)
Microcrystalline Quartz (SiO2)
Quartzite Cobble
Metamorphosed Quartz Sandstone (primarily SiO2)
Sandstone
Arenite
Sandstone
Arenite (primarily SiO2, silica)
Quartzite
Quartzite (primarily SiO2)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Chert (and Flint variant)
Chert (SiO2)
Granodiorite / Granite
Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Amber (Rough)
Amber (Fossilized Tree Resin, succinite)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
Sandstone
Arenite (primarily composed of SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Quartz Pebble
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Quartzite with Garnet
Garnetiferous Quartzite (SiO2 + X3Y2(SiO4)3)
Sandstone
Arenite (composed primarily of SiO2)