Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Category
Browse antropogenic rock (man made) specimens identified by the Rock Identifier community.
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
Brick fragment (Man-made material)
N/A (Fired clay)
Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Opalite
Synthetic Opalized Glass
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
Polished black stone, likely black obsidian
Obsidian (volcanic glass), chiefly silica-rich rhyolitic composition
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
Dyed Crackle Quartz (Green)
Quenching-treated Quartz (Silicon Dioxide, SiO2)
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
Aura Quartz (Titanium/Gold coated)
Silicon Dioxide (SiO2) with metallic vapor deposition
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
Slag Glass
SiO2 (Silicon Dioxide) with impurities
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
Cubic Zirconia (Simulated Diamond)
Cubic Zirconia (ZrO2)
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
Blue Glass or Slag Glass
Amorphous Silica (Anthropogenic Glass)
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)
Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Black Obsidian
Amorphous volcanic glass (SiO2 + impurities)
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Titanium Amethyst Geode
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer
Opalite
Synthetic Opalised Glass
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
Blue Goldstone
Man-made glass with suspended copper, cobalt, or manganese particles
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Blue-green cabochon, likely chalcedony or treated glass imitation
Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
Green Glass (often marketed as 'Obsidian' or 'Green Quartz')
Amorphous Silica (SiO2) with copper or chromium additives
Blue Crackle Quartz (Dyed Quarzite)
Silicon Dioxide (SiO2) with artificial dye
Dyed Blue Agate (Dragon Vein Agate)
Silicon Dioxide (SiO2) with artificial cobalt/organic dyes
Diamond
Native Carbon (C)