Peacock Ore (Bornite or Chalcopyrite)
Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)
Category
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
Peacock Ore (Bornite or Chalcopyrite)
Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)
Heat-Treated Citrine
Quartz (Silicon Dioxide, SiO2)
Blue Agate (likely dyed)
Silicon Dioxide (SiO2)
Tumbled blue-green stone, likely chrysocolla or dyed chalcedony
Probable chrysocolla (hydrated copper aluminosilicate; variable composition), though appearance could also represent dyed chalcedony
Heat-Treated Citrine (Amethyst Cathedral with Agate inclusions)
Silicon Dioxide (SiO2) with iron impurities
Smoky Quartz
SiO2 (Silicon Dioxide)
Agate (Dyed Blue)
SiO2 (Silicon Dioxide)
Smoky Quartz
Silicon Dioxide (SiO2)
Mystic Topaz
Al2SiO4(F,OH)2 (Coated)
Agate
Agate (Silicon Dioxide, SiO2)
Bismuth
Bismuth (Bi)
Heat-Treated Citrine (Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Peacock Ore
Bornite (Cu5FeS4)
Black Onyx
Onyx (Silicon Dioxide, SiO2)
Blue Obsidian
Volcanic Glass (SiO2 with inclusions)
Goldstone
Not a natural mineral or rock. It is an ornamental glass.
Crackle Quartz (Dyed)
SiO2 (Silicon Dioxide) - Treated
Aura Quartz (Pink/Rose Aura Quartz)
Silicon Dioxide (SiO2) bonded with Platinum and/or Silver
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Smoky Quartz (Chlorite Inclusions)
Silicon Dioxide (SiO2) with trace Aluminum and Natural Irradiation
Dyed Agate
Agate (Cryptocrystalline Quartz), SiO2
Smoky Quartz
Silicon Dioxide (SiO2)
Tiger’s eye
Quartz variety, primarily silicon dioxide (SiO₂); fibrous quartz pseudomorph after crocidolite asbestos
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Dyed blue quartz or druzy geode (likely)
Quartz, silicon dioxide (SiO₂), probably artificially colored
Ruby in Zoisite (Anyolite) or possibly a dyed stone/agate
Anyolite (Ruby in green zoisite) or artificially altered chalcedony
Black Onyx
Chalcedony (SiO2)
Tumbled blue stone, likely blue aventurine or dyed quartzite
Quartz (SiO₂), likely with inclusions or artificial dye; exact identification requires testing
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
Agate
Agate (a variety of Chalcedony, SiO2)
Blue Dyed Agate Geode Slice
Chalcedony (Silicon Dioxide, SiO2) with artificial cobalt/iron-based dye
Copper-bearing schist (likely bornite/chalcopyrite ore)
Micaceous schist with sulfide minerals, chiefly bornite (Cu₅FeS₄) and/or chalcopyrite (CuFeS₂)
Magnetic Hematite
Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)
Bismuth
Bismuth (Bi)
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Dyed blue howlite (turquoise imitation), possibly dyed magnesite
Howlite: Ca₂B₅SiO₉(OH)₅; the vivid blue color is artificial dye. Exact identification is uncertain from the photograph alone.
Smoky Quartz
SiO2 (Silicon Dioxide)
Goldstone (blue-goldstone–style glass) beads
Artificial aventurine glass, typically silica glass with copper inclusions; not a natural mineral
Peridot (likely, given the color and bead form)
Olivine, variety Peridot (Mg,Fe)2SiO4
Smoky Quartz
Quartz (SiO₂)
Agate (specifically, multi-colored or pastel-dyed agate)
Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).
Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.