Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Category
Man Made Silicate (Anthropogenic Glass)
Browse man made silicate (anthropogenic glass) specimens identified by the Rock Identifier community.
Learn about Man Made Silicate (Anthropogenic Glass) in the encyclopedia
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Opalite
Synthetic Glass (Simulated Opal)
gemstone
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Blue-green faceted gemstone, possibly glass or synthetic material
Not identifiable from the image; possible synthetic spinel or glass
gemstone
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Dragon's Breath (Mexican Opal Glass)
Artisan Foil Glass (SiO2 based)
mineraloid
Opalite
Man-made Glass (Synthetic Opalized Glass)
mineral
Opalite
Synthetic Glass (Silica-based)
gemstone
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Cobalt Blue Slag Glass
Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives
mineraloid
Opalite Egg
Synthetic Glass (Simulated Opal)
mineral
Tumbled black stone, likely black obsidian
Obsidian (volcanic glass; chiefly silica-rich rhyolitic composition)
igneous
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Opalite
Synthetic Glass (Simulated Opal)
gemstone
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Polished blue glassy mineral specimen, likely sodalite or blue aventurine
Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph
mineral
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Opalite
Synthetic Glass (typically Silica/Magnesium based with metal additives)
mineral
Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Mineral-like byproduct
Tumbled Clear Quartz/Rock Crystal
Silicon Dioxide (SiO2)
mineral
Milky quartz (likely)
Quartz, silicon dioxide (SiO₂)
mineral
Slag (Industrial Glass)
Anthropogenic Vitreous Slag (Post-industrial byproduct)
igneous
Blue glassy gemstone-like specimen
Indeterminate; possibly dyed or treated turquoise, blue apatite, or man-made glass
gemstone
Iron Slag
Anthropogenic Vitreous Silicate (Byproduct of Smelting)
Mineral-like byproduct
Tumbled milky quartz
Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible
mineral
Opalite
Man-made Glass (Synthetic Opalized Glass)
gemstone
Opalite
Synthetic Opalized Glass / Man-made Glass
gemstone
Red glassy gemstone, possibly garnet
Unidentified red transparent material; garnet group (X₃Y₂(SiO₄)₃) is a possibility
gemstone
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Opalite
Opalescent Glass (SiO2 + coloring agents)
Mineral (Synthetic/Man-made)
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
metamorphic (man-made / anthropic)
Quartz crystal fragment (likely milky quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
mineral
Chert (specifically Flint Arrowhead)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Tumbled milky quartz
Quartz (SiO₂), cryptocrystalline-to-massive variety
mineral
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone
Opalite
Synthetic Opalized Glass
gemstone
Clear Quartz Sphere (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Synthetic (Man-made Glass)
Blue Goldstone
Man-made glass with crystalline copper/cobalt inclusions
mineral