Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
Category
Browse man made object (metal alloy) specimens identified by the Rock Identifier community.
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
Blue Goldstone
Goldstone (artificial glass)
Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.
Smelter Slag
Anthropogenic Silicate Slag
Blue Goldstone
Man-made glass with suspended copper, cobalt, or manganese particles
Titanium Amethyst Geode
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer
Cullet Glass / Slag Glass
Amorphous silica glass
Standing Liberty Quarter (Silver Specimen)
Native Silver alloy (Ag with Cu traces)
Opalite (Man-made Glass)
Fused glass (typically made of dolomite and metal opacifiers)
Goldstone (aventurine glass)
Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)
Sea Glass
Man-made silicate glass weathering product
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Diamond (as set in a metal alloy ring)
Diamond (Pure Carbon, C)
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Nickel coin (U.S. currency)
Cupronickel (75% Copper, 25% Nickel alloy)
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
Synthetic Zinc/Polycarbonate Composite (Bey-specimen)
Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay
Rose Gold (Copper-Gold Alloy)
Aurum-Cuprum Alloy (Au-Cu)
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Sulfide Ore (likely Galena and Sphalerite in Quartz)
Lead-Zinc Ore (PbS and ZnS)
Diamond
Native Carbon (C)
Beads (likely glass or man-made material)
N/A (artificial material)
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Amber Inlay Jewelry
Fossilized Resin (C10H16O)
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
Gemstone bead necklace (likely citrine or yellow quartz)
Quartz, SiO₂; precise identification is uncertain because the beads are blurred and metal settings obscure them
Aura Quartz (Anomalously Coated Quartz)
Silicon Dioxide (SiO2) treated with vaporized metals
Copper
Native Copper (Cu)
Iron Meteorite
Iron-nickel alloy (e.g., Kamacite, Taenite)
Bismuth Crystal
Bismuth (Bi)
Gold
Aurum (Au)
Aquamarine
Beryl (Be3Al2Si6O18)
Bismuth
Native Bismuth (Bi)
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
United States Quarter Dollar
Cupronickel Clad Alloy (75% Copper, 25% Nickel over a 100% Copper core)