Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)

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

Alexandrite: chrysoberyl, BeAl₂O₄; exact identification requires gemological testing

Goldstone

Aventurine Glass (Man-made)

Blue glass-like cabochon, likely dyed or synthetic material

Uncertain; possibly dyed chalcedony, synthetic spinel, or blue glass

Tumbled turquoise-like stone

Likely turquoise, hydrated copper aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Amber

Succinite (Organic Mineraloid) - C10H16O

Emerald

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

Ruby

Corundum (Al2O3)

Blue gemstone ring, likely sapphire

Corundum, Al₂O₃ (probable blue sapphire); surrounding stones may be diamonds or simulants

Amber (specifically Red or Cherry Amber)

Succinite (Resinite); Chemical formula: C10H16O

Diamond (or synthetic simulant)

Cubic C (Carbon)

Turquoise cabochon

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

Ruby (Corundum)

Corundum (Aluminum Oxide with Chromium), Al2O3:Cr

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic ZrO₂), possibly glass or quartz

Strawberry Quartz (Lepidocrosite/Hematite-Included Quartz)

Quartz (Silicon Dioxide) with Lepidocrosite or Hematite inclusions (SiO2 + Fe2O3 · nH2O)

Costume Jewelry with Synthetic Gemstones

Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)

Smoky Quartz

Silicon dioxide with aluminum impurities (SiO2)

Goldstone

Avventurina (Cu + SiO2 glass)

Terrazzo (Synthetic Composite Rock)

Cementitious or Epoxy Resin-bound Aggregates

Green faceted gemstone, likely emerald

Beryl, Be₃Al₂Si₆O₁₈, colored green by chromium and/or vanadium

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

Blue Sapphire

Corundum (Al2O3)

Opalite (a synthetic glass)

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

Pearls (likely freshwater cultured pearls)

Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Cubic Zirconia (CZ)

Zirconium dioxide (ZrO2)

Goldstone

N/A (Synthetic Glass with Copper Inclusions)

Amber

Succinite (specifically for Baltic amber; fossilized tree resin)

Opalite

Synthetic glass (SiO2 + metal additions)

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Blue sapphire

Corundum, aluminum oxide (Al₂O₃), colored blue mainly by iron and titanium

Rough Citrine Quartz

Silicon Dioxide (SiO2) with ferric iron impurities

Blue Sapphire

Corundum (Al2O3)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Blue faceted gemstone, likely synthetic sapphire or blue glass

Corundum (Al₂O₃) if sapphire; identity cannot be confirmed visually

Red coral beads

Precious coral, commonly Corallium rubrum (calcium-carbonate skeleton)

Engineered Quartz

Engineered Stone (primarily SiO2)

Yellow chalcedony (likely citrine or iron-stained quartz)

Microcrystalline quartz, SiO₂; yellow coloration likely from iron oxides or included quartz varieties

Amethyst ring

Amethyst, purple quartz (SiO₂), likely set with diamond or other accent stones

Blue glass-like bead or gemstone keychain ornament

Indeterminate; likely cobalt-blue glass or synthetic blue spinel, not identifiable as a natural mineral from the image

Blue Quartz / Glass Gemstone Pendant

SiO2 (Silicon Dioxide) or Synthetic Glass

Amber

Succinite (a fossilized organic resin containing succinic acid)

Agate (Polished Sphere)

Silicon Dioxide (SiO2)