Not A Rock (Animated Character)

Emerald

Beryl (Be3Al2(SiO3)6)

Chinese Writing Stone

Porphyritic Basalt or Porphyritic Andesite

Bismuth crystal aggregate

Bismuth (Bi), commonly laboratory-grown

Gold (Elemental Metal)

Gold (Au)

Carved pyrite frog or toad

Pyrite (iron disulfide, FeS₂), likely a carved massive aggregate

Native gold nugget (probable)

Native gold, Au; possibly gold-bearing ironstone or quartz matrix

Note: Image shows a biological specimen (Rat), not a rock. Representative geological equivalent: Galena (due to lead-grey colors in fur).

Galena (PbS)

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Asphalt (Bituminous Concrete)

Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)

Wood Paneling

Engineered Wood / Plywood Paneling

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Oak-grain Laminate (Industrial/Decorative Furniture Finish)

Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

Amber (Cherry or Red variety)

Succinite (with various trace amounts of organic compounds)

Transit Token (RTD Denver)

Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)

Fursuit (Synthetic Fur Specimen)

Canis anthropomorphus syntheticus

Blue Sea Glass

Amorphous Silica (Anthropogenic glass)

Synthetic Resin Charm (Seal Shape)

Polymer Resin with plastic glitter / Polyethylene terephthalate glitters

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Synthetic Marbled Aggregate (Footwear Component)

Ethylene-vinyl acetate (Croslite™)

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

Carved shell pendant or charm

Likely nacre (mother-of-pearl), composed chiefly of aragonite (CaCO₃) in an organic matrix

Diamond Plate (Steel)

Alloyed Carbon Steel or Aluminum with 'Durbar' pattern

Quartz Geode

Silicon Dioxide (SiO2)

Ammonite Fossil in Matrix

Ammonoidea subclass (e.g., Arietites or similar genera)

N/A (This is a digital image of a bar graph)

Digital Data Visualization (Bar Chart)

Carved orange coral (likely bamboo coral)

Calcareous coral, principally aragonite (CaCO₃); possibly dyed bamboo coral, Isididae

Geode

Quartz / Chalcedony nodule with mineralized cavity

Crinaudite / Fossilized Crinoid Stem

Crinoid (Echinodermata) in a Calcitic/Siliceous Matrix

Red coral (polished coral beads)

Corallium spp.; chiefly calcium carbonate (CaCO₃, calcite)

Fossil coral fragment

Likely colonial scleractinian coral; calcite/aragonite (CaCO₃)

Halite

Halite (Sodium Chloride, NaCl)

Geode with Quartz and possibly Jasper/Hematite

Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides

Crinoid Stem Fossil

Crinoid Columnal (Phylum Echinodermata)

Red coral cabochon (likely dyed or reconstructed coral)

Corallium rubrum or other calcareous coral; chiefly aragonite (CaCO₃)

Chert with Crinoid Fossil Impression

Microcrystalline Quartz (SiO2) with Crinoidea fossil impression

Sandstone with Trace Fossils

Quartz Arenite with Bioturbation (Trace Fossils)

Dalmatian jasper

Quartz-bearing alkali feldspar syenite/porphyritic igneous rock, commonly marketed as Dalmatian jasper

Fossil coral fragment

Probable scleractinian (stony) coral; calcite/aragonite replaced by calcite (identification uncertain from image)

Crinoid Fossil Stem Segment

Class Crinoidea (Echinodermata)

Fossiliferous Limestone (Crinoidal Limestone)

Biogenic Limestone (Calcium Carbonate, CaCO3)

Fossils in Limestone (Crinoid / Marine Invertebrate Fossil)

Fossiliferous Limestone (containing Crinoidea / Brachiopoda)