Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Category
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
N/A (Non-Geological Object)
Green glass-like cabochon, likely synthetic glass or resin
Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin
Quartz (Druzy)
Silicon Dioxide (SiO2)
Faceted Gemstone
Unknown transparent mineral, possibly Diamond (C), Cubic Zirconia (ZrO2), Quartz (SiO2), or Glass
Unable to Identify (Image Obscured)
Note on Image Identification: Textile
N/A (Anthropogenic material)
Druzy Quartz on Quartz Base
Silicon Dioxide (SiO2)
Silicon Carbide (Carborundum)
Silicon Carbide, SiC
Man-made Synthetic Material (Costume Faux Fur)
Synthetic Polymer (Polyester/Acrylic)
Not a geological specimen
N/A (man-made object)
Quartz Druzy (on Matrix)
Silicon Dioxide (SiO2)
Cubic Zirconia
Zirconium dioxide (ZrO2)
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
Popcorn
Zea mays everta (P. Wilson) (Botanical name for the corn variety)
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
Unknown Organic Object (likely a berry or fruit)
Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.
Opalite
Synthetic glass / Opalized glass
Goldstone
Aventurine Glass (Man-made)
Blue Goldstone
Man-made glass with crystalline copper/cobalt inclusions
Painted River Rock
Artificially Coated Sedimentary Rock
Opalite (Synthetic Moonstone/Sea Opal)
Silicon Dioxide (SiO2) glass with metallic inclusions
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Tumbled turquoise-like stone
Likely turquoise, hydrated copper aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
Unidentifiable Specimen
Undetermined
Not a rock, mineral, or geological specimen
Gemstone Ring
Various (Likely Glass, Cubic Zirconia, or assorted semi-precious stones)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
Opalite
Man-made glass (traditionally simulated Opal)
Opalite
Man-made Glass (SiO2 + additives)
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic