Black Tourmaline (Schorl)
Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3)(OH)3(OH))
Category
Browse mineral (found in igneous and metamorphic rocks) specimens identified by the Rock Identifier community.
Black Tourmaline (Schorl)
Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3)(OH)3(OH))
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Tumbled smoky quartz (probable)
Quartz, SiO₂; smoky variety colored by irradiation-related defects
Milky quartz (likely quartz crystal fragment)
Quartz, silicon dioxide (SiO₂)
Milky Quartz Pebble
Crystalline Quartz (SiO2)
Quartz crystal cluster
Quartz (silicon dioxide, SiO₂), likely pale amethyst or iron-stained quartz
Milky quartz
Quartz (silicon dioxide, SiO₂)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Rough White Zircon
Zircon (Zirconium Silicate, ZrSiO4)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Clear Quartz (Faceted)
Silicon dioxide (SiO2)
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Milky Quartz (with trace inclusions)
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
Milky quartz pebble
Quartz (SiO₂), massive variety
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
Milky quartz
Quartz (silicon dioxide, SiO₂)
Milky quartz
Quartz (SiO₂)
Natural quartz crystal cluster / massive quartz
Quartz (silicon dioxide, SiO₂)
Green Tourmaline (Verdelite)
Tourmaline Group; often Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) or Dravite (NaMg3Al6(BO3)3Si6O18(OH)4)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky quartz (likely quartz vein fragment)
Quartz, silicon dioxide (SiO₂)
Citrine
Silicon Dioxide (SiO2)
Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Raw milky quartz
Quartz (silicon dioxide, SiO₂), likely included or fractured massive quartz
Rough quartz crystal cluster
Quartz (silicon dioxide, SiO₂), likely milky or included quartz
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Amethyst
Quartz (Silicon Dioxide with iron impurities), SiO2