Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Category
Man Made Object (Metalwork)
Browse man made object (metalwork) specimens identified by the Rock Identifier community.
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Not a geological specimen
N/A (man-made object)
N/A
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Not a rock, mineral, or geological specimen
N/A
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Synthetic material (Not a rock or mineral)
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Synthetic material (Not a rock or mineral)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Mineral alternative / Synthetic
Red glassy gemstone, possibly garnet
Unidentified red transparent material; garnet group (X₃Y₂(SiO₄)₃) is a possibility
gemstone
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
sedimentary
Flint (chert)
Microcrystalline quartz, SiO₂
sedimentary
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
mineral
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Mineraloid-like Synthetic Material
Blue cabochon, likely dyed or synthetic material
Undetermined; possibly dyed chalcedony (SiO₂), glass, or synthetic corundum
gemstone
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Man-made earbud charging case (Not a rock or mineral)
Acrylonitrile Butadiene Styrene (ABS) Plastic with electronic components
Synthetic/Man-made object
N/A - Non-Geological Item
not a rock/mineral
Brick fragment (Man-made material)
N/A (Fired clay)
man-made
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
This appears to be a man-made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen.
Likely marcasite jewelry (metal brooch and earrings)
Marcasite, FeS₂ (often pyrite or marcasite stones set in silver)
mineral
Polished labradorite pendant
Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)
mineral
Sea Glass
Man-made silicate glass
sedimentary
Clear quartz crystal (likely)
Quartz, silicon dioxide (SiO₂)
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made vitreous material
mineral
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Sea Glass
Man-made vitreous material
gemstone
Carved Stone Turtle
Carved Soapstone and Quartz
mineral
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 material (metal)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Man-made object (Simulant)
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Amorphous silicon dioxide (Man-made glass weathered by wave action)
sedimentary
Carved opalite pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Dyed or synthetic turquoise-blue glass-like specimen
Likely man-made colored glass or resin; exact identification requires testing
mineral
Opalite
Synthetic glass / Opalized glass
gemstone
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
metamorphic
Opalite
Synthesized glass / Silicon dioxide glass
gemstone
Opalite
Synthetic glass / Simulated opal
gemstone