Metal Chain Belt with Square Plates
Not applicable (man-made)
Category
Browse man made object (metalwork) specimens identified by the Rock Identifier community.
Metal Chain Belt with Square Plates
Not applicable (man-made)
Not a geological specimen
N/A (man-made object)
Not a rock, mineral, or geological specimen
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Ring with an Orange Inlay
N/A (Man-made object)
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Man-made earbud charging case (Not a rock or mineral)
Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Metal Alloy (Likely Pewter or Sterling Silver)
Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
N/A - Non-Geological Item
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Aluminum Slag
Anthropogenic Aluminum (Al)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.
Malaysian 50 Sen Coin
Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
Beads (likely glass or man-made material)
N/A (artificial material)
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Note: Item is a Synthetic/Man-made Object
Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Goldstone
Aventurine Glass (Man-made)
Diamond in Kimberlite
Diamond (C in Kimberlite)
Asphalt Concrete
Bituminous conglomerate
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)