Synthetic (Man Made Glass)

Man-made Blank Ammunition (Brass)

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

Goldstone (aventurine glass)

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

Blue glassy mineral fragment, possibly sodalite or dyed/cobalt glass

Uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) if natural, but vivid blue color may indicate cobalt-colored glass

Stainless Steel (Polished)

Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)

Quartz (likely milky quartz or quartz glass-like fragment)

Quartz, silicon dioxide (SiO₂)

Blue Glass or Slag Glass

Amorphous Silica (Anthropogenic Glass)

Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Black tumbled stone, possibly obsidian

Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image

Libyan Desert Glass

Tektite (high-silica impact glass), SiO2

Decorative gemstone bracelet or jewelry

Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads

Sea Glass

Man-made vitreous material (silica-based glass)

Tumbled clear quartz (rock crystal)

Quartz, silicon dioxide (SiO₂)

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

Sea Glass (White/Clear)

Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO

Chert (Arrowheads)

Microcrystalline Quartz (SiO2)

Libyan Desert Glass

Libyan Desert Glass (SiO2 with trace elements)

Clear quartz sphere

Quartz (silicon dioxide, SiO₂)

Clear quartz tumbled stone

Quartz (silicon dioxide, SiO₂)

Opalite (Man-made Glass)

Fused glass (typically made of dolomite and metal opacifiers)

Green Slag

Anthropogenic Silicate Glass

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Obsidian (Blue)

Volcanic Glass (SiO2)

Red Slag Glass

Amorphous Silica (Industrial byproduct with metallic oxide dopants)

Exposed Aggregate Concrete (Pea Gravel)

Concrete with Siliceous Alluvial Gravels

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Goldstone

Aventurine Glass (SiO2 + Cu small inclusions)

Faceted Gemstone

Unknown transparent mineral, possibly Diamond (C), Cubic Zirconia (ZrO2), Quartz (SiO2), or Glass

Moldavite

Tektite (Impact Glass), ~80% SiO2 + Al2O3

Diamond (or Cubic Zirconia simulant)

Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ

Blue glassy gemstone cabochon, likely dyed chalcedony or glass

Uncertain; possible dyed chalcedony (microcrystalline quartz, SiO₂)

Likely clear quartz pebble or glassy quartz fragment

Quartz (silicon dioxide, SiO₂)

Tumbled gray stone, likely quartz-rich pebble

Probable microcrystalline quartz/chalcedony (SiO₂), possibly gray jasper or quartzite

Concrete Fragment

Hardened Portland cement and mineral aggregate

Blue Obsidian (Cullet Glass)

Silicon Dioxide (Amorphous Glass)

Heart-shaped faceted gemstone pendant

Likely yellow quartz (citrine) or synthetic yellow stone, set in metal with small clear accent stones

Blue Goldstone

Man-made glass with suspended copper, cobalt, or manganese particles

Clear quartz fragment (rock crystal)

Quartz, silicon dioxide (SiO₂)

Decorative mosaic cross containing mixed rock and glass fragments

Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass

Asphalt Concrete

Bituminous conglomerate

Slag (Industrial Byproduct)

Artificial silicate/iron byproduct

Green sea glass or tumbled green quartz (uncertain)

Likely quartz (SiO₂) if natural; alternatively man-made soda-lime glass