Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse igneous (anthropogenic) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
Carnelian (Orange Chalcedony)
Silicon dioxide (SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
White Topaz
Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky Variant)
Silicon Dioxide (SiO2)
Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Sodium Iron Aluminum Borosilicate)
Agate Nodule / Weathered Chert
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Jasper Agate
Silicon dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz with Schist Matrix
Silicon Dioxide (SiO2) with Mica-Schist
Amethyst (Rough)
Silicon Dioxide with iron impurities (SiO2)
Moonstone with Black Tourmaline
Orthoclase (KAlSi3O8) with Schorl inclusions
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
Morganite (Pink Beryl)
Beryllium aluminum silicate Be3Al2(SiO3)6
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Gneiss
Gneiss (High-grade metamorphic rock)
Pyrite (Fool's Gold) Cube
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Sodalite
Sodalite [Na8(Al6Si6O24)Cl2]
Rose Quartz
Silicon dioxide (SiO2) with trace titanium, manganese, or iron
Granite
Granite (a felsic intrusive igneous rock composed primarily of quartz, feldspar, and mica)
Granite Cobble/Pebble
Granite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Granite River Pebble
Phaneritic Felsic Igneous Rock (Granite)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Pink Granite
Phaneritic Felsic Igneous Plutonic Rock
Pink Granite (Crystalline Granite)
Igneous Intrusive Rock (Felsic Plutonic)