Mineral (Man Made Glass, Not Natural)

Diamond

Carbon (C)

Diamond

Carbon (C)

Blue faceted gemstone, likely synthetic sapphire or blue glass

Corundum (Al₂O₃) if sapphire; identity cannot be confirmed visually

Conglomerate

Conglomerate Rock (Paraconglomerate)

Tumbled amber-colored chalcedony or jasper

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper

Beaded mineral/crystal jewelry (likely turquoise and coral accents)

Variable; blue beads may be turquoise (CuAl6(PO4)4(OH)8·4H2O), with possible dyed howlite, glass, or composite materials

Diamond

Carbon (C)

Artificial Rock Face (Faux Rock)

Glass Fiber Reinforced Concrete (GFRC)

Red gemstone ring, likely garnet or synthetic ruby

Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish

Slag Glass / Industrial Slag

Anthropogenic Glass

Tumbled chert or jasper pebble

Microcrystalline quartz (SiO₂), likely chert/jasper

Tumbled greenstone (likely serpentinite or green jasper)

Serpentinite, commonly dominated by serpentine-group minerals (Mg₃Si₂O₅(OH)₄); exact identification requires testing

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Sandstone (specifically Arkose or Quartz Arenite)

Arenite (primarily SiO2 with possible Feldspar)

Blue glassy cabochon, likely blue quartz or synthetic glass

Possibly dyed blue chalcedony/quartz (SiO₂); visual identification is inconclusive

Diamond

Carbon (C)

Diamond (Cluster Ring)

Carbon (C)

Polished orbicular jasper (likely ocean jasper)

Siliceous microcrystalline quartz/chalcedony with iron-oxide and volcanic inclusions; commonly called ocean jasper

Granite

Granite (phaneritic intrusive igneous rock consisting of quartz, feldspar, and mica)

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Granite

Intrusive Felsic Igneous Rock (primarily Quartz and Feldspar)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Diamond

Carbon (C)

Diamond

Diamond (pure Carbon, C)

Rough Diamond

Pure Carbon (C)

Weathered concrete or cementitious slab (not natural rock)

Artificial calcium-silicate cement composite; likely Portland cement concrete

Red coral (likely precious coral)

Corallium sp.; calcium-carbonate skeleton, primarily calcite

Unidentified gray stone/concrete-like fragment

Indeterminate; likely a fine-grained carbonate or cementitious geological fragment

Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')

Silicon Dioxide (SiO2) with artificial pigment

Ferrosilicon Slag (Industrial Vitrified Glass)

Vitreous Silicate Residue

Beaded gemstone jewelry, likely carnelian and green aventurine

Carnelian: orange chalcedony (microcrystalline SiO₂); green aventurine: quartz with fuchsite or other inclusions (SiO₂)

Polished brown chalcedony (likely carnelian or jasper)

Microcrystalline quartz, SiO₂; iron oxides produce the brown coloration

Diamond

Carbon (C)

Red-and-brown agate bead bracelet

Agate, a microcrystalline variety of quartz (SiO₂), likely colored chalcedony/carnelian

Diamond

Carbon (C)

Rough Diamond

Diamond (pure Carbon, C)

Fossil Turtle Shell

Testudines carapace fossil

Concrete or asphalt-like aggregate surface with a dark fragment

Uncertain; likely artificial concrete containing mixed lithic aggregate, not a natural rock

Conglomeratic concrete or asphalt aggregate surface with dark bituminous chunks

Polymictic gravel aggregate; dark pieces likely bitumen/asphalt, not a natural rock