Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
Calcite
Calcite (CaCO₃, Calcium Carbonate)
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2), flavored by Nickel
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Milky Quartz
Silicon Dioxide (SiO2)
Amber
Organic gemstone (Succinite)
Jasper
Jasper (Silicon Dioxide, SiO2)
River Rock (Greywacke/Sandstone)
Lithic Wacke
Milky Quartz
Silicon Dioxide (SiO2)
Onyx (beads)
SiO2 (Cryptocrystalline Quartz)
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
Chert (specifically Tan/Yellow Chert)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Yellow Agate
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variation)
Chert (SiO2)
Peridot
Olivine (Mg, Fe)2SiO4
Amber
Succinite (Organic Gemstone)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Tiger's Eye
Silicon dioxide (SiO2) with fibrous inclusions of crocidolite
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
Iceland Spar (Optical Calcite)
Calcite (Calcium Carbonate, CaCO3)
Obsidian
Volcanic Glass (Primary component: SiO2)
Ocean Jasper
Orbicular Jasper/Microcrystalline Quartz (SiO2)
Chert (and its variety Flint)
Silicon dioxide (SiO2) / Microcrystalline quartz
Chert (Nodular or Massive Variety)
Cryptocrystalline Quartz (SiO2)
Amber (specifically Red or Cherry Amber)
Succinite (Resinite); Chemical formula: C10H16O
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Agate
Silicon dioxide (SiO2)
Chert (Brown Variety)
Silicon dioxide (SiO2)
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2)