Yellow Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Yellow Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)
Tumbled brown agate
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide inclusions
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Geode with Quartz and possibly Jasper/Hematite
Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
Sandstone (likely Quartzite-grade)
Arenite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Chert (specifically a Lithic Flake)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Polished jasper pebble
Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities
Jasper
Silicon dioxide (Quartz variety), SiO2
Agate Geode Node
Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Jasper (Silicon Dioxide with Iron Hydroxide impurities, SiO2 + FeO(OH))
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
Flagstone
Sedimentary Sandstone / Flagstone
Pink Granite
Granite (Phaneritic igneous rock)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Quartz Druzy Geode
Silicon Dioxide (SiO2) - Crystalline Variety
Tiger's Eye
Silicon Dioxide (SiO2) with Crocidolite inclusions
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Sandstone with Trace Fossils
Arenite with Ichnofossils
Red jasper pebble
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Quartz (Peach/Orange variety)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Amazonite
Potassium Feldspar (KAlSi3O8) with lead impurities
Tumbled Quartz
Silicon Dioxide (SiO2)