Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Gold Ore
Native Gold (Au) in Quartz or Silicate matrix
Amethyst and Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2) with trace impurities iron (Amethyst) and aluminum/radiation (Smoky Quartz)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
White Quartz Pebble
Silicon Dioxide (SiO2)
White Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Citrine Quartz / Yellow Quartz Pebbles
Silicon Dioxide (SiO2)
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
Citrine
Silicon dioxide (SiO2)
Quartz (Yellow/Citrine variety)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz on Host Rock
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Quartz Pebble (Grit)
Silicon Dioxide (SiO2)
Amethyst (Quartz variety)
Silicon Dioxide (SiO2)
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Milky quartz
Quartz (silicon dioxide, SiO₂)
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
Green Quartz (Prasiolite)
Crystalline Silicon Dioxide (SiO2)
Black Tourmaline (Schorl)
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe2+3Al6Si6O18(BO3)3(OH)3OH
Smoky Quartz
Silicon Dioxide (SiO2)
Dyed Tumbled Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Sunstone with Black Tourmaline (Arfvedsonite)
Feldspar (Na,Ca)(Al,Si)4O8 with Schorl Na(Fe3+)3Al6(Si6O18)(BO3)3(OH)3(OH)
Black Tourmaline (Schorl)
Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4
Citrine
Silicon Dioxide (SiO2) with iron impurities
Rose Quartz
Rose Quartz (SiO2)