Chert (Flint)
Microcrystalline Quartz (SiO2)
Category
Browse mineral (synthetic glass) specimens identified by the Rock Identifier community.
Chert (Flint)
Microcrystalline Quartz (SiO2)
Quartzite (with Iron Staining)
Metamorphosed Quartz Sandstone (SiO2)
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Yellow Quartz / Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO₂)
Quartz (Milky and Smoky variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Stream-rounded)
Arenite (SiO2 based)
Sandstone
Arenite (composed primarily of SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Silicon dioxide with Fuscite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
Aventurine
Aventurine Quartz (SiO2 with inclusions)
Green Aventurine
Aventurine (a variety of Quartz, SiO2)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Quartz (Milky/Cloudy Variety)
Silicon Dioxide (SiO2)
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Amethyst
Amethyst (Silicon Dioxide SiO2 + Fe4+)
Rose Quartz
Crystalline Silicon Dioxide with trace Titanium/Manganese/Iron (SiO2)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Adventurine (Green)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Chert / Flint Nodules
Cryptocrystalline Quartz (SiO2)
Chert / Flint
Chert (varietal name for microcrystalline quartz). Chemical formula: SiO₂
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
River Quartz Pitting/Cobble
Silicon Dioxide (SiO2)
Cloudy Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Quartz Vein Outcrop
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Arsenopyrite in Quartz Matrix
Arsenopyrite (FeAsS)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)