Ferruginous Quartz
Quartz (Silicon Dioxide) with Iron Inclusion, SiO2
Category
Browse mineral (synthetic) specimens identified by the Rock Identifier community.
Ferruginous Quartz
Quartz (Silicon Dioxide) with Iron Inclusion, SiO2
Gold-bearing Quartz
Native Gold (Au) in Quartz (SiO2) matrix
Agate Geode with Quartz Druzy
Chalcedony (SiO2) and Quartz (SiO2)
Amethyst
Amethyst (Varietal of Quartz), SiO2 with traces of Iron (Fe3+)
Clear Quartz Cluster
Silicon Dioxide (SiO2)
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Tiger's Eye
Silicon Dioxide (SiO2) with iron oxide inclusions
Labradorite
Labradorite (Ca, Na)(Al, Si)4O8
Ocean Jasper
Orbicular Jasper/Microcrystalline Quartz (SiO2)
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
Smoky Quartz
Silicon Dioxide (SiO2)
Gold Nugget
Native Gold (Au)
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)
Amethyst
Silicon dioxide / Violet Quartz (SiO2)
Red Jasper
Quartz (Silicon Dioxide) with Hematite inclusions, SiO2
Larimar
Pectolite (NaCa2Si3O8(OH))
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Amethyst
Silicon dioxide (SiO2) with iron impurities
Moss Agate
Silicon Dioxide with inclusions (SiO2)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with ferric impurities)
Pink Quartz (Rose Quartz variant)
Silicon Dioxide (SiO2)
Amethyst Quartz Pebble
Silicon Dioxide (SiO2) with iron impurities
Copper Ore with Chrysocolla and Azurite
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) / Cu3(CO3)2(OH)2 (Azurite)
Bornite (Peacock Ore)
Bornite (Copper iron sulfide - Cu5FeS4)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Gold Ore in Quartz
Auriferous Quartz (Gold: Au; Quartz: SiO2)
Rose Quartz
Crystalline Silicon Dioxide with trace Titanium/Manganese/Iron (SiO2)
Labradorite
Labradorite, (Ca, Na)(Al, Si)4O8
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
Black Tourmaline in Quartz
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) in Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Gold Nugget
Native Gold (Au)
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
Citrine (likely Heat-Treated Amethyst)
Silicon Dioxide (SiO2)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Corundum
Corundum (Aluminium oxide, Al2O3)
Milky Quartz with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Disulfide (FeS2)
Basalt
Aphanitic mafic volcanic rock (primarily plagioclase feldspar and pyroxene)