Synthetic Material (Not A Rock Or Mineral)

Turquoise cabochon or turquoise-bearing material

Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O

Asphalt (Bituminous Concrete)

Bituminous mix / Anthropogenic conglomerate

Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Opalite (a synthetic glass)

Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant

Tumbled tiger’s-eye

Quartz variety, fibrous golden-brown SiO₂ (pseudomorphic quartz after crocidolite)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Cat's Eye Moonstone (Simulated/Synthetic or natural Cat's Eye Quartz/Glass)

There is no single scientific name. The appearance suggests either: Moonstone (feldspar group), Cat's Eye Quartz (SiO2), Apatite (Ca5(PO4)3(F,Cl,OH)), or most likely a synthetic material such as Fiber Optic Glass or 'Opalite' (a type of glass).

Hematite

Iron(III) oxide (Fe2O3)

Green faceted gemstone, likely emerald or synthetic emerald

Beryl, Be₃Al₂Si₆O₁₈, colored green by chromium and/or vanadium; identity cannot be confirmed visually

Rough White Zircon

Zircon (Zirconium Silicate, ZrSiO4)

Turquoise cabochon

Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O

Blue gemstone ring, likely blue topaz or synthetic blue spinel

Likely topaz (Al₂SiO₄(F,OH)₂) or synthetic spinel (MgAl₂O₄); identification is uncertain from the image

Ruby (in costume jewelry context)

Corundum (Al2O3) with Chromium impurities

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

Assorted Semi-Precious Gemstone Crosses

Quartz, Silicates, Carbonates (various)

Clear faceted gemstone, likely synthetic cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual identification is not definitive and diamond or synthetic moissanite are alternatives

Blue glassy mineral specimen, possibly blue topaz or aquamarine

Tentatively topaz (Al₂SiO₄(F,OH)₂) or beryl/aquamarine (Be₃Al₂Si₆O₁₈); identification is limited by severe image blur

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Zircon

Zirconium Silicate (ZrSiO₄)

Opalite (likely man-made opalescent glass)

Opalite; not a true mineral, typically synthetic opalescent glass (silica-based)

Opalite crescent pendant

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

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Beach Pebble Quartzite / Chalcedony Pebble

Silicon Dioxide (SiO2)

Note: Item is not a geological specimen

Polyester mesh and Ethylene-vinyl acetate (EVA) polymer

Green faceted gemstone, likely synthetic glass or chrome-dyed stone

Undetermined; possibilities include green tourmaline, synthetic emerald, glass, or dyed quartz

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Red faceted gemstone, likely synthetic ruby or red spinel

Ruby: corundum (Al₂O₃); spinel: MgAl₂O₄; visual identification alone is insufficient

Blue glassy mineral specimen, possibly dyed or synthetic

Uncertain; possible blue fluorite (CaF₂), dyed chalcedony, or man-made glass

Opalite glass sphere (likely synthetic imitation)

Man-made opalescent glass; not natural opal

Polished ruby cabochon (likely synthetic or treated)

Corundum, aluminum oxide (Al₂O₃), colored red by chromium

Green gemstone ring, likely emerald simulant or jade

Uncertain; possible beryl (emerald, Be₃Al₂Si₆O₁₈) or jadeite (NaAlSi₂O₆), but the blurred image may show synthetic glass or another treated stone

Strawberry Quartz (or Sunstone / Tumbled Quartz)

Silicon Dioxide (SiO2) with Hematite/Lepidocrocite inclusions

Ruby

Corundum (Al2O3 with Chromium trace impurities)

Gemstone jewelry ensemble

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

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock

Polished purple gemstone, likely amethyst

Amethyst: purple quartz, silicon dioxide (SiO₂)

Diamond (Faceted Gemstone)

Native Carbon (C)

Goldstone

Avventurina (Man-made Glass with Copper inclusions)

Blue Agate Geode (Dyed)

Cryptocrystalline Quartz (SiO2)