Man Made Material (Jewelry, Metal Alloy)

Aqua Aura Quartz

Titanium/Gold-coated Silicon Dioxide (SiO2)

Opalite (Man-made Glass)

Synthetic Opalised Glass

Iron meteorite fragment

Fe-Ni meteorite, likely an iron meteorite or stony-iron fragment

Garnet-set butterfly brooch

Likely almandine or pyrope garnet, iron–aluminum silicate (Fe₃Al₂Si₃O₁₂ or Mg₃Al₂Si₃O₁₂)

Iron Slag

Iron/Steel Slag (Ferrosilicate Glass)

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Beaded gemstone bracelet

Indeterminate; likely small polished mineral beads, possibly turquoise or dyed stone, with metal and glass components

Slag

Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)

Polymictic conglomerate or breccia (possibly concrete-like aggregate)

Lithified polymictic gravel; clasts may include basalt, granite, quartzite, and other silicates

Clear faceted gemstone in a gold-colored setting

Likely colorless quartz (rock crystal) or synthetic cubic zirconia; visual identification is inconclusive

Rainbow Hematite (Titanium Coated)

Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating

Cullet Glass (Slag Glass)

Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities

Concrete Fragment

Artificial Conglomerate (Cement and Aggregate)

Aura Quartz (Pink/Rose Aura Quartz)

Silicon Dioxide (SiO2) bonded with Platinum and/or Silver

Opalite

Synthetic Silicon Dioxide (SiO2)

Diamond Plate (Steel)

Alloyed Carbon Steel or Aluminum with 'Durbar' pattern

Sea Glass

Man-made vitreous material / Silicon dioxide

Small black stone fragment (possibly obsidian)

Unidentified dark rock; obsidian is volcanic glass (composition typically rhyolitic)

Gold (10K Alloy)

Aurum (Au) with alloying metals (Cu, Ag, Zn)

Gold ring with a clear faceted gemstone

Likely diamond (carbon, C); the photograph is insufficient to confirm the stone or metal

Smelter Slag

Anthropogenic Silicate Slag

Diamond-set gold ring

Diamond (crystalline carbon, C) set in a gold alloy; the metal and setting are manufactured

Possible weathered basalt or slag fragment

Basalt, chiefly plagioclase and pyroxene; identification is uncertain from the image

Pallasite Meteorite

Pallasite (ST-class)

Blue Goldstone

Aventurine Glass

Blue opalescent glass-like gemstone (possibly imitation opalite)

Likely man-made opalite glass; composition varies, typically silica-based glass

Cubic Zirconia (Simulated Diamond)

Cubic Zirconia (ZrO2)

Blue Glass or Slag Glass

Amorphous Silica (Anthropogenic Glass)

Blue-green faceted gemstone, possibly glass or synthetic material

Not identifiable from the image; possible synthetic spinel or glass

Red cabochon gemstone ring (likely glass or synthetic stone)

Undetermined; the image does not establish a natural mineral identity

Opalite

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

Polished labradorite pendant

Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)

Bismuth Crystal

Bismuth (Bi)

Native Silver

Silver (elemental Ag)

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

Beads (likely glass or man-made material)

N/A (artificial material)

Opalite

Synthetic Opalised Glass

Carved opalite pendant

Opalite (man-made opalescent glass; not a natural mineral)

Opalite (a synthetic glass, often confused with Opal)

Silicon dioxide glass (SiO2nH2O, for natural opal)

Sea Glass

Amorphous Silicon Dioxide (SiO2)

Ferrosilicon Slag (Industrial Vitrified Glass)

Vitreous Silicate Residue

Metallic sulfide mineral fragment, likely galena

Galena (lead sulfide, PbS), tentative identification