Quartz crystal with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Category
Browse mineral with metamorphic or igneous host specimens identified by the Rock Identifier community.
Quartz crystal with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Prasiolite
Silicon Dioxide (SiO2)
Star Sapphire
Corundum (Al2O3) with Rutile inclusions
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Black Tourmaline (Schorl)
Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
Quartz Vein in Host Rock
Hydrothermal Quartz (SiO2) in Slates/Schists
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Garnet
Almandine formula: Fe3Al2(SiO4)3
Rough Star Sapphire (Corundum)
Al2O3 (Aluminum Oxide)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Hypersthene (or Enstatite/Ferrosilite)
Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)
Milky Quartz
Silicon Dioxide (SiO2)
Amethyst (Quartz variety)
Amethyst [Silicon Dioxide (SiO2)]
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Sapphire (Corundum)
Corundum (Al2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Massive Quartz with Host Rock
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3) with Chromium traces
Ruby (in jewelry)
Corundum (Al2O3 with Chromium traces)
Milky Quartz (or Vein Quartz)
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3 - Aluminum Oxide)
White Quartz
Silicon Dioxide (SiO2)
Milky Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Black Onyx
Silicon Dioxide (SiO2) with parallel banding
Quartz Vein on Matrix
Silicon Dioxide (SiO2)
Star Ruby
Corundum (Al2O3 with chromium and rutile inclusions)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Quartz (Iron-stained or Ferruginous)
Silicon Dioxide (SiO2)
Quartz-veined Gneiss
Gneiss with Quartz (SiO2) intrusions
Ruby (Pink to Red Corundum)
Al2O3 (Corundum with Chromium impurities)
Quartz (Citrine or Iron-Stained variety)
Silicon Dioxide (SiO2)
Wishing Stone
Greenschist or Basalt with Quartz/Calcite Vein
Milky Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Mica in Quartz Host
Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
Pyrite on Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
Milky Quartz (Quartz Vein)
Silicon Dioxide (SiO2)