Mineral (Synthetic)

Smoky Quartz

Silicon Dioxide (SiO2)

Rough Citrine Quartz

Silicon Dioxide (SiO2) with ferric iron impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Magnetite or Hematite-rich Ore

Magnetite (Fe3O4) or Hematite (Fe2O3)

Ammolite

Biogenic gemstone (Aragonite, CaCO3)

Diamond (or synthetic simulant)

Cubic C (Carbon)

Assorted Semi-Precious Gemstone Crosses

Quartz, Silicates, Carbonates (various)

Amber (and Cubic Zirconia)

Fossilized Tree Resin

Malachite

Cu2CO3(OH)2 (Copper Hydroxide Carbonate)

Opalite (a synthetic glass)

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

Blue opalite (often sold as synthetic opal)

Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock

Polished tiger’s eye

Quartz (microcrystalline SiO₂) with crocidolite-derived iron oxides

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Ametrine

Silicon Dioxide (SiO2) with iron impurities

Ruby

Corundum (Al2O3 with Chromium trace impurities)

Sandstone (likely Fossilized Wood or Concrete Simulacrum)

Arenite / Silicified Wood / Anthropogenic Concrete

Smoky Quartz

Silicon Dioxide (SiO2)

Blue Sapphire

Corundum (Al2O3)

Ruby (Rough/Raw)

Corundum (Al2O3:Cr)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Cubic Zirconia (Faceted)

Zirconium Dioxide (ZrO2)

Red gemstone ring, likely garnet or synthetic ruby

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

Synthetic Costume Glove (Paws)

Polyethylene terephthalate (Polyester) & Polyurethane blend

Ruby

Corundum (Aluminum Oxide with Chromium), Al2O3:Cr

Diamond (in jewelry)

Cubic Carbon (C)

Goldstone

Aventurine glass

Blue-green turquoise (probable)

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

Faceted blue gemstone, likely blue topaz or synthetic spinel

Topaz (Al₂SiO₄(F,OH)₂) or synthetic spinel (MgAl₂O₄); image insufficient for certainty

Tumbled amethyst

Quartz, crystalline silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation

Ruby (varieties of Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Chrysocolla in Malachite

Cu2CO3(OH)2 (Malachite) / Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby (Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Hematite

Iron(III) oxide (Fe2O3)

Painted Rock

Weathered Sedimentary Rock (Painted)

Painted River Rock

Painted Quartzite or Smooth Siltstone

Ruby

Corundum (Al2O3 with Chromium traces)

Agate (Polished Sphere)

Silicon Dioxide (SiO2)

Faceted purple-blue beads, likely synthetic glass or treated gemstone

Indeterminate; possible synthetic corundum, synthetic spinel, or dyed quartz (SiO₂)