Quartz Crystal (specifically a small Clear Quartz point)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Found In Igneous And Metamorphic Rocks)
Browse mineral (found in igneous and metamorphic rocks) specimens identified by the Rock Identifier community.
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Borosilicate mineral/Quartz inclusion)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Quartzite
Quartzite (mainly SiO2)
metamorphic
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
mineral
Moss Agate
Silicon Dioxide (SiO2) with Manganese or Iron Oxide inclusions
mineral
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2 with Iron Oxide impurities)
Mineral
Graphite
Graphite (Carbon, C)
metamorphic
Schist/Phyllite
Metamorphic Schist (Chlorite Schist variety)
metamorphic
Quartz (Druzy) in host rock
SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)
Mineral
Granite Cobble
Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)
igneous
Yellow Quartz or Citrine
Silicon Dioxide (SiO2)
mineral
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Green Kyanite
Kyanite (Al2SiO5)
mineral
Ruby in Fuchsite (often sold as Ruby in Zoisite)
Corundum (Al2O3) in Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Ruby (Raw/Rough)
Corundum (Al2O3 with Chromium trace)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Carnelian
Carnelian (Silica, SiO2)
mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide); NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)
mineral
Labradorite
Labradorite ((Ca,Na)(Al,Si)4O8)
mineral
Quartz / Quartzite
Silicon Dioxide (SiO2)
metamorphic
Amygdaloidal Rhyolite
Amygdaloidal felsic extrusive rock
igneous
Labradorite (Larvikite variety)
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
igneous
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Aquamarine
Aquamarine (Beryl variety) - Be3Al2(Si6O18)
mineral
Milky Quartz (with Iron Oxide staining)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite (Dioritic or Hornblende-rich)
Phaneritic Plutonic Felsic to Intermediate Igneous Rock
igneous
Quartz (chalcedony variety) or Limestone with Quartz Veins
SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)
Mineral or Sedimentary Rock (with mineral inclusions)
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rough Green Tourmaline (Verdelite)
Elbaite (Complex Borosilicate), Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
mineral
Aquamarine and clear quartz
Aquamarine (Be3Al2Si6O18), Quartz (SiO2)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral