Synthetic (Not A Rock Or Mineral)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

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.

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)

Man-made Synthetic Material (Plastic/Composite)

Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)

N/A (Non-Geological Object)

Unidentified gray metallic object

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

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)

Unable to Identify (Image Obscured)

Druzy Quartz on Quartz Base

Silicon Dioxide (SiO2)

Not a geological specimen

N/A (man-made object)

Quartz Druzy (on Matrix)

Silicon Dioxide (SiO2)

Mixed rock and mineral collection

Unidentified assortment of geological specimens; individual species cannot be determined from the image

Unknown Rock Fragment

Unknown

Goldstone (aventurine glass)

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

Popcorn

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

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.

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Not a rock

Not a rock

Not a rock

Not a rock

Not a rock

Not a rock

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

Anthropogenic textile material

Likely quartz-rich rock fragment

Indeterminate; possibly quartz-bearing granite or quartzite

Not a rock, mineral, or geological specimen

Silicon Carbide (Carborundum)

Silicon Carbide, SiC

Sedimentary Rock with Crafts (Pet Rock)

Sedimentary rock decorated with synthetic materials

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Blue-gray stone pebble (possibly slag or a weathered rock)

Unidentified fine-grained rock; composition cannot be determined from the image

Small tan stone (undetermined)

Unidentified fine-grained geological material; species cannot be determined from the image

Unidentifiable Specimen

Undetermined

Unidentified rough mineral fragments

Likely quartz- or feldspar-bearing rock; exact identification requires testing

Cubic Zirconia (as used in jewelry setting)

Zirconium dioxide (ZrO2)

Unidentified gray rock/mineral specimen

Indeterminate; possibly quartz-rich rock or a metallic sulfide-bearing specimen

Small red-brown mineral or rock fragment

Unidentified; possibly iron-oxide-rich jasper, garnet, or weathered sulfide

Chipped Glass/Plastic Fragment

Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Opalite

Synthetic Opalite Glass

Limonite (Iron Ore)

Limonite; FeO(OH)·nH2O

Greenstone pebble (likely serpentinite)

Serpentinite, composed mainly of serpentine-group minerals

The user-provided image does not contain a rock or mineral specimen