Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Category
Quartz
Browse quartz specimens identified by the Rock Identifier community.
Milky Quartz with Tourmaline and Iron Oxides
Silicon Dioxide (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Lepidolite in Quartz (Obelisk)
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite)
metamorphic
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2) - Ferric Iron impurities
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions (Hematite/Limonite)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
Mineral/Sedimentary
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon dioxide (SiO2)
mineral
Greisen (Quartz-Muscovite-Turretine Rock)
Greisen
Metamorphic Rock
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Granular)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Red Chalcedony (likely dyed)
Chalcedony (a variety of Quartz), SiO2
Mineral (Cryptocrystalline Quartz)
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite
Plutonic felsic igneous rock
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Gold
Native Gold (Au)
mineral
Zebra Jasper
Silicon Dioxide (SiO2) with various inclusions
metamorphic/sedimentary
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Granite
Granitoid
igneous
Amethyst (in jewelry)
Silicon Dioxide (SiO2) with iron impurities
mineral
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic
Green Aventurine in Host Rock
SiO2 (Quartz with Fuchsite inclusions)
mineral
Sandstone
Arenite (SiO2 based with quartz grains)
sedimentary
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
mineral
Granite
Granite (Felsic intrusive igneous rock)
igneous
Marble (Calcitic)
Metamorphosed Limestone (CaCO3)
metamorphic
Que Sera Stone (Llanite)
Rhyolite containing blue quartz and feldspar
igneous
Sandstone (Quartzite Pebble)
Arenite / Metamorphosed Sandstone (SiO2)
sedimentary
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Pink Granite
Phaneritic Acidic Igneous Rock (primarily SiO2, Al2O3, K2O)
igneous