Mineral Based Human Made Alloy

Sandstone

Arenite (SiO2 based)

Carved Mottled Greenish-Yellow Crystal/Glass Object

Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.

Faceted clear gemstone ring, likely quartz or glass imitation

Unidentified colorless faceted material; quartz (SiO₂) is possible, but the image cannot distinguish it from glass or another gem

Asphalt Concrete (Bituminous Conglomerate)

Anthropogenic Bituminous Conglomerate

Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)

Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy

Likely rough green-blue glassy mineral fragment

Unidentified; the image is insufficient to distinguish a natural mineral from industrial slag or glass

Weathered concrete or cementitious slab (not natural rock)

Artificial calcium-silicate cement composite; likely Portland cement concrete

Crushed Stone / Gravel

Aggregatus saxum (variable mineral composition)

Opalite

Synthetic Glass / Man-made Opal Simulant

Sea glass (likely pale blue glass)

Human-made silicate glass, likely soda-lime glass; not a natural mineral or rock

Kidney Stone

Calcium oxalate, uric acid, struvite, or cystine

Man-made Blank Ammunition (Brass)

CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)

Native American Pottery Sherd

Blue Goldstone

Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)

Clear-stone silver-tone teardrop earring

The stones may be colorless quartz or glass; the image does not allow reliable identification. Metal setting appears silver-tone.

Green sea glass (likely)

Anthropogenic glass, not a mineral; composition commonly soda–lime silicate glass

Dyed Quartz Cube

Silicon Dioxide (SiO2)

Chert Arrowhead (Jasper)

Chert (Cryptocrystalline Quartz, SiO2)

Sea Glass

Anthropogenic Silicate Glass

Orange glassy slag (industrial by-product)

Iron-rich silicate glass; composition varies, commonly Fe–Ca–Al silicate

Asphalt Concrete (Bituminous Concrete)

Bituminous aggregate

Breccia

Breccia

Sandstone Concretion

Sedimentary concretion

Sandstone

Arenite (SiO2 based typically)

Bismuth Crystal

Bismuth (Bi)

Sea Glass

Man-made vitreous material / Silicon dioxide

Goldstone (aventurine glass)

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

Polished banded calcite (onyx marble)

Calcite, CaCO₃; commonly marketed as “honey onyx” or “Mexican onyx”

Beaded gemstone bracelet

Indeterminate; likely small polished mineral beads, possibly turquoise or dyed stone, with metal and glass components

Likely blue-green glassy slag or a weathered mineral fragment

Unidentified; the image does not show diagnostic features sufficient for a mineral identification

Asphalt / Road Aggregate

Bituminous Conglomerate (synthetic)

Concrete

Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)

Tumbled yellow quartz (likely citrine)

Quartz, silicon dioxide (SiO₂), iron-colored variety

Polished banded jasper (likely red jasper)

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides; exact variety uncertain

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

Chert (likely flint)

Microcrystalline quartz, SiO₂

Polished, carved gemstone (possibly dyed agate or glass-like material)

Unconfirmed from the image; no specific mineral can be identified reliably

Likely green bottle glass, not a geological specimen

Manufactured soda-lime silicate glass

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

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

Sandstone (with concrete/human-made layer)

Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)

Crinoid stem fossil

Crinoidea

Carved yellow stone butterfly

Undetermined; possibly carved soapstone (talc-rich rock) or another soft ornamental stone