K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
Category
Browse man made glass mineral simulant specimens identified by the Rock Identifier community.
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
Gold
Aurum (Au)
Tumbled green aventurine (probable)
Quartz, SiO₂, with green fuchsite mica inclusions
Tumbled pale quartz (likely milky quartz)
Quartz, silicon dioxide (SiO₂)
Quartz (Tumbled)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz with Pyrite and Lichen
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Quartz (Milky to Clear)
Silicon Dioxide (SiO2)
Quartz Heart or Arrowhead Shape
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 composition primarily)
Black Obsidian
Obsidian (Volcanic Glass)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass
Quartz
Silicon Dioxide (SiO2)
Pumice or Tufa/Travertine
Pumice (if igneous) or Calcareous Tufa (if sedimentary)
Quartz
Silicon Dioxide (SiO2)
Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone.
SiO2 (Silicon Dioxide)
Weathered pegmatite or feldspar-rich granite fragment
Granitic pegmatite, composed mainly of potassium feldspar and quartz, with minor mica; exact identification is uncertain from the photograph
Tumbled milky quartz (likely chalcedony or quartzite)
Quartz/chalcedony, silicon dioxide (SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Rose variety)
Silicon Dioxide (SiO2)
Tumbled Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Crystal)
Silicon Dioxide (SiO2)
Raw Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Tumbled green aventurine (probable)
Quartzite dominated by quartz (SiO₂), with green mica/fuchsite or chlorite inclusions
Quartz with Schist Matrix
Crystalline Silicon Dioxide (SiO2) in micaceous schist
Clear Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz / Common Opal Transition
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Green Fluorite
Calcium Fluoride (CaF2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Snowflake Obsidian
Vitreous volcanic rock with Cristobalite inclusions (mostly SiO2)
Quartz
SiO2
Quartz Druzy on Matrix
SiO2
Purple Fluorite Octahedron
Fluorite (Calcium Fluoride, CaF2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Goethite)