Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Category
Mineral (Processed Metal)
Browse mineral (processed metal) specimens identified by the Rock Identifier community.
Learn about Mineral (Processed Metal) in the encyclopedia
View all →
Smoky Quartz Geode Slice
Silicon Dioxide (SiO2)
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
mineral
Mother of Pearl (Nacre)
Nacre (Aragonite/Conchiolin), CaCO3 + Organic Polymers
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Orange Calcite (Cleavage Rhomb)
Calcite (Calcium Carbonate, CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Galena
Lead(II) sulfide (PbS)
mineral
Red Jasper
Quartz (Silicon Dioxide) with Hematite inclusions, SiO2 + Fe2O3
mineral
Jasper Agate (Carnelian Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Dyed Agate
Silicon Dioxide (SiO2) with synthetic dyes
mineral
Silicon Carbide (Carborundum)
Moissanite (SiC), though mostly synthetic
mineral
Quartz with Mica
Silicon Dioxide (SiO2) with Phyllosilicates (Mica)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)
mineral
Eagle Eye Stone (Green Tiger's Eye)
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
mineral
Seashell Fossil
Invertebrate fossil (phylum Mollusca)
fossil
Quartz (White Pebble) and Sandstone (Brown/Tan Fragments)
Silicon Dioxide (SiO2) for the white pebble
mineral and sedimentary
Jasper
Quartz (SiO2)
sedimentary
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Tiger's Eye (Unpolished)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Basalt with Iron Oxide staining
Basalt (Mafic volcanic rock)
igneous
Granite
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Pyrite
Iron Pyrite (FeS2)
Mineral
Milky Quartz with Mica and Pyrite
Quartz (SiO2) with Muscovite (KAl2(AlSi3O10)(OH)2) and Pyrite (FeS2)
mineral
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Lapis Lazuli
Lapis Lazuli (Complex silicate mineral mixture primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Gneiss (specifically a Granitic Gneiss)
Gneiss (Composition: Quartz, Feldspar, Mica)
metamorphic
Peridotite
Ultramafic igneous rock
igneous
Druzy Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite (often commercially sold as Honey Calcite or Aragonite)
Calcium Carbonate (CaCO3)
mineral
Granite
Granite (a felsic intrusive igneous rock)
Igneous Rock