Dyed and Metallic Coated Agate Geode
Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Dyed and Metallic Coated Agate Geode
Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Chert (specifically Flint or Gray Chert)
Silicon Dioxide (SiO2)
Chert (Arrowhead Preform or Point)
Chert (Microcrystalline Quartz, SiO2)
Concrete with Aggregate
Artificial Conglomerate (Cement and Aggregate)
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
Painted Garden Rock (likely Granite or Limestone base)
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3) based substrate with Acrylic/Enamel pigments
Asphalt (Bituminous pavement fragment)
Artificial conglomerate / Bitumen-Aggregate mixture
Moqui Marble (Shaman Stone)
Iron Oxide Concretion (Hematite/Goethite shell with Sandstone core)
Chert (Arrowhead Fragment)
Chert / Microcrystalline Silicon Dioxide (SiO2)
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2) with artificial pigment
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
Painted Pet Rock (Quartzite/Sandstone base)
Silicon Dioxide (SiO2) with anthropomorphic acrylic embellishments
Turquoise (Dyed Howlite/Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Target mineral) / Ca2B5SiO9(OH)5 (Actual specimen: Howlite)
Chert (Arrowhead Debitage or Spall)
Silicon Dioxide (SiO₂)
Glauconitic Sandstone
Glauconitic Sandstone (complex silicate formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Drill Core Sample
Cylindrical Rock Core (Specific mineralogy varies by extraction site)
Grooved Maun Ball (Maul/Hammerstone-like Concretion)
Calcareous/Ferruginous Concretion in Sandstone Matrix
Prasiolite
Silicon Dioxide (SiO2) with iron impurities
Diamond (or Diamond Simulant/Cubic Zirconia)
Carbon (C) - if diamond, or Zirconium dioxide (ZrO2) - if Cubic Zirconia
Basalt
Basalt (Mafic volcanic rock)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
Dyed Agate
Silicon Dioxide (SiO2)
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
Ferrous Slag
Fused calcium-iron silicates (Industrial Slag)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Peacock Ore
Bornite (Cu5FeS4)
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Dyed Agate (Tumbled)
Silicon Dioxide (SiO2) - stained microcrystalline quartz
Trilobite Fossil (Flexicalymene)
Flexicalymene ouzregui
Sphalerite in Matrix (Polished Point)
Zinc sulfide (Zn,Fe)S
Blue Agate (Dyed)
Silicon Dioxide (SiO2)
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
Glass
Amorphous Silicon Dioxide (SiO2)
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Heat-Treated Citrine (Amethyst Cathedral with Agate inclusions)
Silicon Dioxide (SiO2) with iron impurities
Dyed Agate Slice
Silicon Dioxide (SiO2) with artificial colorants
Blue Agate (Dyed)
Silicon Dioxide (SiO2)