Diamond
Native Carbon (C)
Category
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Diamond
Native Carbon (C)
Quartz (Milky or Cloudy Quartz)
Quartz (Silicon Dioxide, SiO2)
Jade
Jadeite or Nephrite
Shale
Shale (Consolidated fine-grained clay/silt)
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Mixed Quartz and Jasper Pebbles
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
Jasper River Stone
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Coarse-grained Granite
Phaneritic Granite (contains Quartz, Feldspar, and Mica)
Travertine (Tufa)
Calcium Carbonate (CaCO3)
Amber
Succinite (C10H16O)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
Turquoise with Pyrite
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O] with Iron Pyrite (FeS2)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Graphite
Graphite (Native Carbon, C)
Tiger Iron
Tiger Iron (composite of Tiger's Eye, Red Jasper, and Hematite)
Sandstone (Ferruginous)
Arenite (with high iron oxide content)
Sandstone (Ferruginous/Red Sandstone)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3/FeO(OH) cement)
Olivine (Peridotite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
Granite
Granite (felsic intrusive igneous rock)
Tufa
Calcareous Tufa (CaCO3)
Sandstone (likely Greywacke or Lithic Sandstone)
Arenite / Wacke
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with FeO(OH) impurities)
Sandstone
Arenite (primarily composed of SiO2)
Septarian Nodule Segment (Turtle Stone)
Septarian Concretion (CaCO3 with Siderite or Calcite infill)
Yellow Chert or Jasper
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Cloudy Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Cinnabar in Quartz
Silicon Dioxide (Quartz, SiO2) with Mercury Sulfide inclusions (Cinnabar, HgS)