Carnelian Agate
Silicon Dioxide (SiO2)
Category
Browse igneous and mineral specimens identified by the Rock Identifier community.
Carnelian Agate
Silicon Dioxide (SiO2)
Black Tourmaline in Quartz Matrix
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Labradorite
Labradorite (Ca, Na)(Al, Si)4O8
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Citrine Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Druzy (on Geode Fragments)
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2) with trace amounts of titanium, iron, or manganese
Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Gold Nugget
Native Gold (Au)
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Smoky Quartz
SiO2 (Silicon Dioxide with aluminum impurities)
Grey Chalcedony (Agate)
Silicon Dioxide (SiO2)
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Carnelian
Carnelian (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Carnelian
Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Pink and Green Tourmaline (Tumbled)
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
Rose Quartz
Silicon Dioxide (SiO2)
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)