Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
Quartz (Druzy/Macro-crystalline)
Silicon Dioxide (SiO2)
Jasper with Quartz inclusion
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon dioxide (SiO2)
Blue Quartz
Quartz (Silicon Dioxide) with blue inclusions (SiO2)
Milky Quartz with Inclusions
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Sandstone (Yellow/Siltstone variant)
Arenite (SiO2 primarily)
Milky Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Smoky Quartz (Polished)
Silicon Dioxide (SiO2)
Quartz fragment
Silicon dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
Quartz (Smoky/Milky variant)
Silicon Dioxide (SiO2)
Sandstone (Stream Pebble)
Arenite (primarily SiO2)
Agate (translucent pebble)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
Sandstone/Quartzite
Sedimentary Rock (composed mainly of SiO2)
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Sandstone
Arenite (specifically Iron-stained Quartz Sandstone)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky/Clear variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Black Obsidian
Volcanic Glass (predominantly SiO2, Silicon Dioxide)
Sandstone
Arenite (primarily SiO2)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (SiO2)
Obsidian
Obsidian (Volcanic Glass)
Rose Quartz
SiO2 (Silicon Dioxide)
Fluorite (Purple Octahedron)
Calcium Fluoride (CaF2)
Black Star Diopside
Diopside (CaMgSi2O6) with Magnetite inclusions
Bicolor Quartz (Milk Quartz with Slag or Dark Inclusions)
Silicon Dioxide (SiO2) with impurities
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)