Organic Materia (Not A Rock Or Mineral)

Grass (Organic Matter/Soil)

Poaceae (family of monocotyledonous flowering plants)

Small gold-colored jewelry piece with clear stones

Likely a metal setting holding small faceted gemstones; the stones cannot be identified from the image.

Note: Item is not a geological specimen

Homo sapiens (Dermal Appendage: Pilus)

Clam shell (likely a bivalve shell)

Bivalvia; shell composed primarily of calcium carbonate (usually aragonite and/or calcite)

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)

Pearl necklace

Pearl: biogenic calcium carbonate, primarily aragonite (CaCO₃), in a conchiolin matrix

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Unidentified dark stone fragment

Indeterminate from the image; possibly a dark mafic rock or black mineral

Man-made Synthetic Material (Plastic/Composite)

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

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

Blue opalescent glass-like gemstone (possibly imitation opalite)

Likely man-made opalite glass; composition varies, typically silica-based glass

Mica-rich granite (likely biotite granite)

Granite, composed chiefly of quartz, feldspar, and mica (commonly biotite); exact minerals are uncertain from the image.

Quartz (Druzy)

Silicon Dioxide (SiO2)

Unable to Identify (Image Obscured)

Druzy Quartz on Quartz Base

Silicon Dioxide (SiO2)

Quartz Druzy (on Matrix)

Silicon Dioxide (SiO2)

Not a geological specimen

N/A (man-made object)

Granite

Granite — a coarse-grained felsic intrusive igneous rock, typically composed of quartz, feldspar, and mica

Goldstone (aventurine glass)

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

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.

Popcorn

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

Polished opalite (likely man-made opalescent glass)

Opalite is a commercial name, not a mineral; typically opalescent glass, often soda-lime silicate glass

Likely green bottle glass, not a geological specimen

Manufactured soda-lime silicate glass

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

Anthropogenic textile material

Not a rock, mineral, or geological specimen

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

Polyester (Polyethylene terephthalate) / Faux Fur

Unidentifiable Specimen

Undetermined

Green glass sphere/marble

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

Chipped Glass/Plastic Fragment

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

Portable Ceramic Space Heater

Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements

Likely bituminous coal

Coal, predominantly carbon-rich organic matter; exact rank cannot be confirmed from the image

Weathered Sedimentary Rock

Sedimentary Rock

Fossilized Bone

Fossilized vertebrate bone

Sedimentary Rock (Limestone or Siltstone pebble)

Sedimentary rock fragment

Fossiliferous Sedimentary Rock

Sedimentary limestone with invertebrate fossil imprint

Fossilized Shark Tooth

Chondrichthyes teeth

Sedimentary Rock with Crafts (Pet Rock)

Sedimentary rock decorated with synthetic materials

Likely bituminous coal

Coal, predominantly carbon-rich organic matter with variable maceral and mineral content

Fossilized Bone

Vertebrate Fossil (Biogenic sediment)