Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
Category
Browse mineral (man made glass) specimens identified by the Rock Identifier community.
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
Sandstone
Sedimentary rock composed mainly of quartz sand
Obsidian
Volcanic Glass (Amorphous Silica)
Sandstone with Iron Staining
Clastic sedimentary rock (SiO2 with iron oxides)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble (Sea Glass-like Quartz)
Quartz (Silicon Dioxide - SiO2)
Sandstone (Quartz-rich Cobble)
Arenite
Tumbled amethyst
Quartz, crystalline silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
Slag Glass
Amorphous Silica Glass (with metal oxide inclusions)
Sandstone
Arenite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Polished green aventurine
Quartzite or quartz-rich rock containing fuchsite mica; mainly SiO₂
Quartz
Silicon Dioxide (SiO2)
Obsidian
Amorphous volcanic glass (SiO2)
Sandstone
Clastic sedimentary rock
Sandstone
Sedimentary Rock (Quartz arenite)
Clear Quartz
Silicon Dioxide (SiO2)
Sandstone Pebble
Sandstone (primarily SiO2)
Sandstone
Arenite (SiO2 principal)
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble with Matrix
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (Primary mineral: SiO2)
Aventurine (Tan/Cream colored)
Quartz (SiO2) with mineral inclusions
Tumbled quartz (likely milky quartz)
Quartz — silicon dioxide (SiO₂)
Rose Quartz
Silicon Dioxide (SiO2) with trace impurities of titanium, iron, or manganese
Likely polished black stone or obsidian
Obsidian (volcanic glass), chiefly SiO₂
Milky Quartz Pebble with Iron Inclusions
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Sandstone
Sedimentary Clastic Rock
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 principal)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Black Onyx
Chalcedony (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)