Jasper
Cryptocrystalline Quartz (SiO2)
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Jasper
Cryptocrystalline Quartz (SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 principal composition)
Sandstone
Arenite
Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)
Sandstone
Arenite (SiO2 based with quartz, feldspar, or lithic fragments)
Sandstone (Pebble/Cobble)
Arenite (primarily SiO2)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Fe/Mn/Mg)
General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)
Anhydrite (Calcium Sulfate, CaSO4)
Granite
Granite (Felsic Intrusive Igneous Rock)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone
Arenite (primarily SiO2)
Quartz (Milky/Yellowish variety)
Silicon Dioxide (SiO2)
Fuchsite with Ruby
Cr-rich Muscovite with Corundum (K(Al,Cr)2(AlSi3O10)(OH)2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Ferruginous Quartz (River Pebble)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Rough Green Tourmaline (Verdelite)
Elbaite (Complex Borosilicate), Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Amethyst (Quartz variety)
Silicon Dioxide (SiO2) with iron impurities
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Calcite
Calcium Carbonate (CaCO3)
Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2)
Parti Sapphire
Corundum (Al2O3)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Native Gold (in the form of jewelry)
Gold (Au)
Yellow Quartz (Citrine or Citrine-colored Quartz)
Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Ruby (Rough/Raw)
Corundum (Al2O3:Cr)
K2 Azurite Granite / K2 Stone
Granite (igneous rock) with Azurite inclusions (mineral)
Basalt with vesicles (Amygdaloidal Basalt)
Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)