Synthetic (Man Made Material Mimicking Natural Stone)

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)

Silicon Dioxide (SiO2) with metallic inclusions

Red glassy gemstone, possibly garnet

Unidentified red transparent material; garnet group (X₃Y₂(SiO₄)₃) is a possibility

Polished green-and-black banded cabochon (likely malachite imitation or dyed agate)

Uncertain; possible malachite (Cu₂CO₃(OH)₂), banded agate (SiO₂), or man-made glass

Concrete fragment or Conglomerate

Artificial Conglomerate (Concrete) or Natural Conglomerate

Asphalt (Bituminous Concrete)

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

Blue opal heart cabochon

Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

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

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Blue Goldstone

Aventurine Glass

Asphalt Concrete

Bituminous Concrete

Cullet Glass (Slag Glass)

Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities

Tumbled opalite (likely synthetic glass)

Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species

Ocean Jasper Mushroom

Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)

Hematite

Iron(III) oxide (Fe2O3)

Concrete / Conglomerate (Man-made)

Artificial Conglomerate (Cementitious Composite)

Asphalt Concrete

Bituminous conglomerate

Faceted glass-like gemstone object

Likely synthetic glass or cubic zirconia; exact material cannot be confirmed from the image

Concrete with Exposed Aggregate

Anthropogenic conglomerate (Concrete)

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

Yellow faceted gemstone, likely citrine or yellow sapphire

Uncertain; probable quartz (SiO₂) or corundum (Al₂O₃)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Cubic Zirconia (Man-made)

Cubic Zirconia (ZrO2) with Enamel and Metal Alloy

Brick fragment (Man-made material)

N/A (Fired clay)

Unidentified polished dark gemstone cabochon

Possibly hematite, obsidian, jet, or dark agate; image insufficient for a definitive identification

Goldstone (Red)

Aventurine Glass (Cupriferous glass)

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

Blue cabochon gemstone, likely synthetic spinel or glass

Undetermined; possible synthetic cobalt-blue spinel (MgAl₂O₄) or colored glass

Asphalt (Road Aggregate)

Asphalt concrete / Bituminous mixture

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Concrete

Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)

Blue faceted gemstone ring, likely synthetic sapphire or blue topaz

Uncertain from image; possible corundum (Al₂O₃) or topaz (Al₂SiO₄(F,OH)₂)

Loose faceted colorless gemstones, likely quartz or glass-like mineral chips

Most consistent with quartz (SiO₂), though the photograph cannot exclude synthetic cubic zirconia or glass

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Decorative gemstone bracelet or jewelry

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

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)

Asphalt Chunk (Bituminous Concrete)

Aggregated Bitumen / Artificial Breccia

Concrete / Anthropogenic Conglomerate

Man-made composite material (Portland cement, aggregate, and water)

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

Blue opalite glass cabochon (likely imitation opal)

Man-made opalescent glass; not a natural mineral