Man Made Material (Metal)

Tumbled milky quartz

Quartz, silicon dioxide (SiO₂)

Asphalt (Bituminous Pavement)

Bituminous mix (Aggregates with Bitumen binder)

Opalite

Man-made opalescent glass

Sea Glass

Man-made silicate glass

Slag Glass

Amorphous Silicate (Man-made)

Sea Glass

Man-made silicate glass

Tumbled gray stone, likely quartz-rich pebble

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

Cullet Glass (Slag Glass)

Amorphous Silicon Dioxide (Industrial byproduct)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Blue glassy gemstone cabochon, likely dyed chalcedony or glass

Uncertain; possible dyed chalcedony (microcrystalline quartz, SiO₂)

Asphalt Chunk (Bituminous Concrete)

Aggregated Bitumen / Artificial Breccia

Likely clear quartz pebble or glassy quartz fragment

Quartz (silicon dioxide, SiO₂)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Decorative gemstone bracelet or jewelry

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

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

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

Sea Glass

Man-made vitreous material (silica-based glass)

Hematite

Iron(III) oxide (Fe2O3)

Clear quartz fragment

Quartz (silicon dioxide, SiO₂)

Blue slag glass or dyed glass-like industrial material

Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass

Mother of Pearl (Nacre)

Aragonite (CaCO3) with Organic Matrix

Diamond (or Simulant)

Carbon (C)

Carnelian cabochon

Orange-red variety of chalcedony (microcrystalline quartz), SiO₂

Fossiliferous limestone with colonial coral

Calcite (CaCO₃) limestone containing fossil tabulate or rugose coral colonies

Concrete with Aggregate

Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)

Cultured Marble (Synthetic)

Polymer-matrix composite (typically calcium carbonate in polyester resin)

Synthetic Resin / Plastic Figurine

Synthetic Polymer (Copolymer of Polyethylene or Resin)

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

Bauxite

Bauxite (Al(OH)3, AlO(OH))

Sea Glass

Silicon dioxide (mostly)

Aura Quartz (Anomalously Coated Quartz)

Silicon Dioxide (SiO2) treated with vaporized metals

Painted River Rock

Artificially Coated Sedimentary Rock

Concrete

Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)

Sandstone (with concrete/human-made layer)

Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)

Tumbled clear quartz (rock crystal)

Quartz, silicon dioxide (SiO₂)

Quartz pebble (Quartztite fragment)

Silicon Dioxide (SiO2)

Likely tumbled or cut quartz/chalcedony fragment

Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz

Asphalt Chunk

Asphalt concrete

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky quartz

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Polished labradorite sphere

Labradorite, calcic plagioclase feldspar ((Ca,Na)(Al,Si)₄O₈)

Faceted brown gemstone pendant, likely smoky quartz or champagne topaz

Probably quartz (SiO₂), smoky variety; alternatively topaz (Al₂SiO₄(F,OH)₂)

Citrine Quartz

Citrine (Silicon Dioxide, SiO2)