Anthropogenic (Man Made Industrial Deposit)

Ferrous Slag

Fused calcium-iron silicates (Industrial Slag)

Pale green glassy mineral fragment, possibly prehnite or fluorite

Probable prehnite (Ca₂Al₂Si₃O₁₀(OH)₂) or pale-green fluorite (CaF₂); exact identification requires testing

Dark quartz point (possibly smoky quartz)

Quartz, SiO₂; the dark color may indicate smoky quartz, but the image is insufficient to confirm

Diamond

Carbon (C)

Ferro-Manganese Slag

Vitreous Silicate Slag

Slag Glass (Cullet)

Amorphous Silica / Glass residue

Chalcanthite (Likely Synthetic/Lab-Grown)

Hydrated copper(II) sulfate (CuSO4·5H2O)

Polished orbicular jasper (likely ocean jasper)

Siliceous microcrystalline quartz/chalcedony with iron-oxide and volcanic inclusions; commonly called ocean jasper

Jasper

Silicon Dioxide (SiO2)

Goldstone (blue/black aventurine glass)

Man-made aventurine glass; silica glass containing metallic copper or other glittering inclusions

Small clear crystal, possibly quartz or glass-like gemstone

Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia

Ferrosilicon Slag (Industrial Vitrified Glass)

Vitreous Silicate Residue

Green Slag Glass

Amorphous Silicon Dioxide (with metallic impurities)

Ironstone (Limonitic/Hematitic Sandstone)

Ferruginous sandstone (predominantly Fe2O3 and FeO(OH))

Sandstone (likely Fossiliferous)

Arenite / Fossiliferous Sandstone (SiO2 composition)

Yellow cabochon gemstone, likely citrine or yellow glass imitation

Quartz (SiO₂), if natural citrine; visual evidence is insufficient to exclude man-made glass or resin

Green glass cabochon or tumbled stone

Indeterminate; likely man-made glass, possibly aventurine glass rather than a natural mineral

Blue goldstone beads

Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli

Likely tumbled epidote-bearing rock or green jasper

Epidote-group silicate, possibly in a jasper or serpentinite matrix

Quartz cluster (likely milky quartz)

Quartz, silicon dioxide (SiO₂), trigonal crystal system

Synthetic Costume Glove (Paws)

Polyethylene terephthalate (Polyester) & Polyurethane blend

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Rounded river pebble (likely weathered granite or metamorphic rock)

Indeterminate; possible granitic or quartz-rich lithology

Rounded river pebble

Indeterminate lithic clast; likely weathered sandstone or quartz-rich sedimentary rock

Clear quartz crystal

Quartz (SiO₂), likely a small hexagonal prismatic crystal

Diamond

Carbon (C)

Blue glass-like tumbled specimen

Most likely cobalt-blue slag glass or manufactured glass; not confidently identifiable as a natural mineral from the image

Dark rounded pebble, likely basalt or slag

Probable fine-grained mafic rock; possibly basalt (plagioclase–pyroxene) or industrial iron/steel slag

Colorless faceted gemstone, likely glass or cubic zirconia

Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant

Colorless faceted quartz-like gemstone

Likely quartz (SiO₂), though the appearance may also indicate man-made glass or cubic zirconia

Diamond (or Diamond Simulant)

Carbon (C)

White Agate (Chalcedony)

Silicon Dioxide (SiO2)

Red Sandstone

Arenite (Ferruginous Sandstone)

Coal (Bituminous Coal)

Caustobiolith / Sedimentary Rock

Blue-beaded gemstone jewelry, likely lapis lazuli or dyed blue agate

Uncertain from the image; possible lazurite-bearing lapis lazuli (Na₃Ca(Si₃Al₃)O₁₂S) or blue chalcedony (SiO₂)

Sea Glass (Frosted Glass)

Amorphous Silica (SiO2) with various additives

Sea Glass (Uranium/Vaseline Glass variant)

Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)

Land Snail Shell

Gastropoda (Calcium Carbonate, CaCO3)

Clear quartz crystal fragment

Quartz, silicon dioxide (SiO₂)

Diamond

Carbon (C)

Diamond

Carbon (C)

Flaked stone projectile point

Likely worked chert or fine-grained silicified shale; exact lithology cannot be confirmed from the image