Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Category
Browse mineral and glass specimens identified by the Rock Identifier community.
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Goldstone (Red/Brown)
Aventurine Glass (SiO2 with Copper inclusions)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
Milky Quartz
Silicon Dioxide (SiO2)
Limonite-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide (FeO(OH)·nH2O) staining
Fluorite Tower
Fluorite (Calcium Fluoride - CaF2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (variant Flint/Jasper)
Microcrystalline Opaline Silica (SiO2)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Sandstone
Arenite (Siliclastic sedimentary rock), SiO2 + various minerals
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
Granite (Light-colored quartz/feldspar variety)
Granite (composed primarily of Quartz SiO2 and Feldspar KAlSi3O8)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (with Iron staining)
Silicon Dioxide (SiO2)
Quartz Pebble (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Clear Quartz
Silicon Dioxide (SiO2)
Sunkissed Quartz or Hematoid Quartz
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Sandstone (Quartzose)
Arenite (primarily SiO2)
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Variety: Rose Quartz/Smoky Quartz mix)
Silicon Dioxide (SiO2)
Sandstone (likely Quartzose Sandstone pebble)
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
Sandstone (Water-worn Pebble)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine (Heat-treated Amethyst)
Citrine Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)