Synthetic Glass (Often Categorized As A Simulated Mineral)

Diamond (or synthetic simulant)

Cubic C (Carbon)

Red gemstone ring, likely synthetic ruby or red glass; exact stone cannot be confirmed from the image

Ruby (corundum, Al₂O₃) if natural; the setting appears to be silver-tone metal

Faceted color-change gemstone, likely synthetic alexandrite or glass imitation

Alexandrite: chrysoberyl, BeAl₂O₄; exact identification requires gemological testing

Ruby / Red Tourmaline

Corundum (Al2O3) or Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)

Opalite

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

Red faceted gemstone, likely synthetic ruby or red glass

Ruby: corundum, aluminum oxide (Al₂O₃), chromium-colored; identity cannot be confirmed visually

Opal ring

Common opal, likely synthetic or assembled blue-green opal (hydrated amorphous silica, SiO₂·nH₂O)

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye

Colorless faceted gemstone, likely glass or quartz

Uncertain; possibly quartz (SiO₂), but the strong uniform brilliance and apparent molded/faceted form may indicate leaded glass or cubic zirconia

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Ametrine

Ametrine (SiO2 - Silicon Dioxide with trace amounts of Iron)

Likely citrine or yellow glass imitation in a silver-tone bracelet

Citrine: quartz, SiO₂; exact material cannot be confirmed visually

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Polished tiger’s eye

Quartz (microcrystalline SiO₂) with crocidolite-derived iron oxides

Clear-stone silver-tone teardrop earring

The stones may be colorless quartz or glass; the image does not allow reliable identification. Metal setting appears silver-tone.

Amethyst (faceted gemstone)

Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron-related defects

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Cubic Zirconia

Zirconium dioxide (ZrO2)

Ruby (in jewelry)

Corundum (Al2O3 with Chromium traces)

Red gemstone ring, possibly synthetic ruby or red glass

Unidentified red stone; ruby is corundum (Al₂O₃), but the image cannot confirm its identity

Smoky Quartz (with Druzy/Polished Edge)

Smoky Quartz (Silicon Dioxide, SiO2)

Turquoise (beads)

Turquoise; CuAl6(PO4)4(OH)8·4H2O

Strawberry Quartz

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Amethyst jewelry centerpiece

Amethyst, purple quartz (SiO₂), likely set with colorless diamonds or other gems

Blue-green turquoise (probable)

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

Larimar

Pectolite (NaCa2Si3O8(OH))

Emerald

Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities

Gem-set gold ring

Unidentified transparent gemstone, possibly quartz or glass, set in a gold-colored metal ring

Blue faceted gemstone, likely sapphire

Corundum (Al₂O₃), likely blue sapphire; identity cannot be confirmed from the photograph alone

Pink faceted gemstone, possibly pink sapphire

Uncertain from the image; possibly corundum (Al₂O₃)

Composite Turquoise or Reconstituted Turquoise with Copper inclusions

CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes

Chalcanthite

Copper(II) sulfate pentahydrate (CuSO4·5H2O)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Blue Sapphire

Corundum (Al2O3)

Green gemstone ring, possibly emerald

The green stone may be emerald (beryl, Be₃Al₂Si₆O₁₈), but the photo cannot confirm its identity; the setting appears to be silver-colored metal.

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

Chalcanthite

Copper(II) sulfate pentahydrate (CuSO4·5H2O)

Smoky Quartz

Silicon Dioxide (SiO2)