Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (found in igneous and metamorphic rocks) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Green Aventurine (Carved)
Silicon Dioxide (Quartz variant) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Hypersthene
(Mg,Fe)SiO3 - Enstatite-Ferrosilite series
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Pyrite (locally known as Fool's Gold)
Iron Sulfide (FeS2)
Smoky Quartz
Silicon Dioxide (SiO2)
Tumbled Moonstone and Amazonite Chips
Orthoclase (KAlSi3O8) and Microcline (KAlSi3O8) of the Feldspar Group
Milky Quartz
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Tumbled Moonstone
Feldspar (Orthoclase/Albite), KAlSi3O8
Blue Sapphire
Corundum (Al2O3)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Hematite
Iron(III) oxide (Fe2O3)
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
Black Tourmaline (Schorl)
Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4
Quartz (Amethyst variety)
Silicon Dioxide (SiO2)
Pyrite
Iron Pyrite (FeS2)
Smoky Quartz
Quartz (Silicon Dioxide), Formula: SiO2
Orange Calcite
Calcium Carbonate (CaCO3)
Citrine (likely Heat-Treated Amethyst)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amber and Citrine Quartz
Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Black Tourmaline (Schorl)
Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3(OH)4)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Aventurine
Quartz (Aventurine variety)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Greasy Quartz (likely carved Milky Quartz or Aventurine)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO₂)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)