Synthetic Material (Not A Rock Or Mineral)

Milky Quartz

Silicon Dioxide (SiO2)

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)

Diamond (or Cubic Zirconia simulant)

C (Carbon) or ZrO2 (Zirconium Dioxide)

Diamond (or Cubic Zirconia simulant)

Carbon (C) / Zirconium Dioxide (ZrO2)

Faceted quartz crystal sphere (likely rock crystal)

Quartz, silicon dioxide (SiO₂)

Diamond (likely rough or included fragment)

Diamond, crystalline carbon (C), cubic crystal system

Dyed Agate

Agate (Cryptocrystalline Quartz), SiO2

Tanzanite earrings

Tanzanite, blue-violet zoisite (Ca₂Al₃(SiO₄)₃(OH))

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Diamond (or Cubic Zirconia)

Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ

Opalite

Synthetic Opalite (Man-made glass)

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye

Silicon Carbide (Carborundum)

Moissanite (SiC), though mostly synthetic

Tumbled amethyst

Amethyst, purple quartz (SiO₂)

Emerald

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

Turquoise cabochon jewelry

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

Moonstone (bead form)

Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar

Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

White Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Blue Goldstone

Aventurine Glass

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Strawberry Quartz (Hematoid Quartz)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Amber (Simulated/Faturan Style)

Resin mix (Likely Phenolic/Celluloid if synthetic, Succinite if natural)

Cubic Zirconia (as a jewelry specimen)

Zirconium dioxide (ZrO2)

Iridescent coated quartz (likely synthetic/display gemstone)

Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Cubic Zirconia (CZ)

Zirconium dioxide (ZrO2)

Cobalt Glass Slug (Man-made Glass)

Amorphous Silica with Cobalt Oxide (SiO2 + CoO)

Sapphire (likely blue synthetic sapphire or blue glass in a ring)

Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.

Green cabochon gemstone, likely glass-filled or synthetic emerald imitation

Uncertain; possible synthetic emerald (beryl, Be₃Al₂Si₆O₁₈) or green glass

Faceted Quartz or Cubic Zirconia

SiO2 (Quartz) or ZrO2 (Cubic Zirconia)

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Hematite

Iron(III) oxide (Fe2O3)

Opalite

Man-made Opalized Glass (Synthetic Glass)

Opal cabochon

Opal, hydrated amorphous silica (SiO₂·nH₂O), likely common or Ethiopian precious opal

Diamond

Carbon (C), Native Element

Faceted Diamond or Cubic Zirconia

Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ

Ruby

Corundum (Al2O3 with Chromium traces)

Opalite (Synthetic Moonstone/Opal)

Synthetic Silica Glass

Opalite

Synthetic Opalised Glass