Man Made Glass (Not A Natural Rock Or Mineral)

Inlaid stone ring (likely jasper or agate)

Likely microcrystalline quartz (chalcedony, SiO₂), possibly jasper, with decorative mineral inlays

Pyrite Concretion (Grapestone)

Iron Sulfide (FeS2) Concretion

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

Diamond

Carbon (C)

Diamond (Colorless/White)

Carbon (C)

Pearl and Garnet Glass

Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass

Diamond

Carbon (C)

Slag

Ferrous Slag (Siliceous industrial waste)

Blue faceted gemstone ring, likely synthetic sapphire or blue topaz

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

Beaded gemstone jewelry (likely amethyst, lapis lazuli, and pearl or glass imitation)

Mixed mineral beads; possible quartz (SiO₂) and lazurite-bearing lapis lazuli

Black Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Diamond (in a jewelry setting)

Carbon (C)

Smoky Quartz

Silicon Dioxide (SiO2)

Blue Slag Glass

Ferro-silicate glass (Slag)

Quartz (Engineered Quartz Surface)

Silicon Dioxide (SiO2) based composite

Yooperlite (Syenite clast containing fluorescent Sodalite)

Sodalite-bearing Syenite

Green aventurine bead bracelet

Quartz (SiO₂), typically green quartzite/aventurine colored by fuchsite mica or other inclusions

Carnelian cabochon pendant

Carnelian, orange-red chalcedony (microcrystalline quartz, SiO₂)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Small dark rock fragment

Uncertain; possibly weathered basalt or slag

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Gemstone jewelry ensemble

Likely mixed gemstone and glass-bead jewelry; exact stones cannot be determined from the image

Goldstone

Aventurine Glass (SiO2 + Cu small inclusions)

Polished dendritic agate cabochon (likely agate or jasper)

Microcrystalline quartz, SiO₂, commonly chalcedony with iron-oxide inclusions

Dyed Blue Agate Slice

Silicon Dioxide (SiO2)

Pearl

Biogenic CaCO3 (Aragonite and Calcite)

Sandstone

Sedimentary Clastic Rock

Possible basalt or industrial iron-rich slag

Basalt (plagioclase–pyroxene rock); identification uncertain from image

Cullet Glass (Industrial Slag Glass)

Amorphous Silica (SiO2) with metallic oxide impurities

Corundum (Ruby variety)

Aluminium oxide (Al2O3)

Probable amber fragment

Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)

Faceted brown gemstone pendant, likely smoky quartz or champagne topaz

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

Blue Chalcedony Cube

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2) with trace aluminum and irradiation

Faceted colorless gemstone, likely quartz or glass imitation

Most likely quartz (SiO₂), though the strong glare and visible facet pattern could indicate cubic zirconia or lead glass

Decorative gemstone bracelet or jewelry

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

Sandstone

Clastic Sedimentary Rock

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Asphalt (Bituminous Concrete)

Bituminous mix / Anthropogenic conglomerate

Banded Chert / Chalcedony

Silicon Dioxide (SiO2)

Synthetic Resin (Artificial Specimen)

Polyurethane or Polyester Resin

Red cabochon gemstone ring (likely ruby or red spinel; identity unconfirmed)

Possibly corundum (ruby, Al₂O₃) or spinel (MgAl₂O₄); visual identification alone cannot distinguish these from glass or synthetic stones.