Synthetic Material (Not A Rock Or Mineral)

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

Unidentified gray metallic object

Not determinable from the image; likely a metal screw or manufactured fastener rather than geological material

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)

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Silicon Carbide (Carborundum)

Silicon Carbide, SiC

Druzy Quartz on Quartz Base

Silicon Dioxide (SiO2)

Not a geological specimen

N/A (man-made object)

Quartz Druzy (on Matrix)

Silicon Dioxide (SiO2)

Sedimentary Rock with Crafts (Pet Rock)

Sedimentary rock decorated with synthetic materials

Goldstone (aventurine glass)

Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone

Cubic Zirconia

Zirconium dioxide (ZrO2)

Popcorn

Zea mays everta (P. Wilson) (Botanical name for the corn variety)

Blue glass-like bead or gemstone keychain ornament

Indeterminate; likely cobalt-blue glass or synthetic blue spinel, not identifiable as a natural mineral from the image

Likely silicon carbide (carborundum)

Synthetic silicon carbide (SiC), likely blue-green crystalline grit

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.

Clear Quartz crystals on a Matrix base (Geode fragment)

Silicon Dioxide (SiO2)

Asphalt / Road Aggregate

Bituminous Conglomerate (synthetic)

Green glassy gemstone-like specimen

Likely synthetic glass or treated quartz; exact identification requires testing

Turquoise cabochon pendant

Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O

Blue-green turquoise (probable)

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Blue cabochon gemstone, likely synthetic spinel or glass

Undetermined; possible synthetic cobalt-blue spinel (MgAl₂O₄) or colored glass

Ruby (set in a ring; possibly synthetic or imitation)

Corundum, Al₂O₃; red color is typically caused by chromium

Blue stone cabochon, likely lapis lazuli or dyed stone

Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; exact identification is uncertain from the image

N/A - Image does not contain a rock or mineral

Anthropogenic textile material

Red cabochon gemstone ring (likely glass or synthetic stone)

Undetermined; the image does not establish a natural mineral identity

Dyed Agate

Silicon Dioxide (SiO2) - variety Chalcedony

Dyed or synthetic turquoise-blue glass-like specimen

Likely man-made colored glass or resin; exact identification requires testing

Amethyst (likely synthetic or treated)

Purple quartz, SiO₂; color caused mainly by trace iron and irradiation

Hematite cameo or hematine imitation

Hematite (Fe₂O₃); possibly synthetic hematine or black glass

Opalite

Synthetic glass / Opalized glass