Tumbled quartz-rich pebble
Microcrystalline quartz (SiO₂), possibly weathered chert or chalcedony
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Tumbled quartz-rich pebble
Microcrystalline quartz (SiO₂), possibly weathered chert or chalcedony
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Grain)
Silicon Dioxide (SiO2)
Quartz Crystal Cluster in Matrix
Silicon Dioxide (SiO2)
Possible tektite or volcanic glass specimen
Natural silica glass; composition commonly near SiO₂, but exact identification requires chemical testing
Quartz Pebble
Silicon Dioxide (SiO2)
Smoky quartz fragment
Quartz, silicon dioxide (SiO₂), smoky variety
Pegmatite (Quartz with Tourmaline/Biotite inclusions)
Igneous Pegmatite
Lepidolite
K(Li,Al)3(Al,Si,IV)4O10(F,OH)2
Pink Orthoclase Feldspar with Dendrites
Orthoclase (KAlSi3O8) with Manganese Oxide dendrites
Celestine (or Celestite) on Matrix
Celestine (SrSO4)
Milky Quartz
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (Amorphous Silicon Dioxide)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Rough Quartz (Milky / Clear Quartz)
Silicon Dioxide (SiO2)
Greasy Quartz (likely carved Milky Quartz or Aventurine)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz Pebble with Chert
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Chlorite/Mica inclusions
Silicon Dioxide (SiO2) with phyllosilicate inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Sedimentary Sandstone with Iron Oxide
Ferruginous Sandstone
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Felsic Tuff
Pyroclastic volcanic rock (Tuff)
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
Milky quartz with iron staining
Quartz, silicon dioxide (SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Quartz / Clear Quartz
Silicon Dioxide (SiO2)