Citrine
SiO2 (Silicon Dioxide)
Category
Browse synthetic glass (often categorized as a simulated mineral) specimens identified by the Rock Identifier community.
Citrine
SiO2 (Silicon Dioxide)
Quartz with Hematite Staining
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) inclusions
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Green Aventurine
Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
Jasper with Quartz Vein
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz with inclusions (likely Tourmaline or Biotite)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz (Microcrystalline/Macro crystalline variety)
Silicon Dioxide (SiO2)
Quartz with Limonite Staining
Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)
Quartz with inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Ferruginous Quartz (Iron-stained Quartz)
Quartz with Iron Oxide inclusions (SiO2 with Fe2O3)
Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily Quartz, SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Pink Feldspar
Orthoclase (KAlSi3O8)
Milky Quartz
Quartz (SiO2)
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Arenite
Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Black Onyx
Chalcedony (Silicon Dioxide, SiO2)
Rose Quartz
Rose Quartz (SiO2)
Green Quartzite
Silicon Dioxide (SiO2) with inclusions (e.g., Fuchsite or Actinolite)
Smoky Quartz
Silicon Dioxide (SiO₂)
Dumortierite Quartz
Dumortierite in Quartz (Al6O3(BO3)(SiO4)3)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Slag Glass
Vitreous Silicate Residue