Mineral (Synthetic)

Hematite cameo or hematine imitation

Hematite (Fe₂O₃); possibly synthetic hematine or black glass

Amethyst jewelry centerpiece

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

Ruby (in jewelry)

Corundum (Al2O3 with Chromium traces)

K2 Stone (or K2 Jasper)

Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)

Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Opalite

Man-made opalized glass

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire

Larimar

Pectolite (NaCa2Si3O8(OH))

Blue Agate Geode (Dyed)

Cryptocrystalline Quartz (SiO2)

Opalite

Synthetic Glass / Man-made Opal Simulant

Emerald

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

Green cabochon gemstone pendant, likely turquoise or dyed green turquoise

Probably turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification requires testing

Ruby

Corundum (Al2O3 with Chromium impurities)

Strawberry Quartz

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

Zircon

Zirconium Silicate (ZrSiO₄)

Opalite

Synthetic Opalized Glass (SiO2 + additives)

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3 with Chromium traces)

Blue Topaz

Topaz [Al2SiO4(F,OH)2]

Amethyst (Tumbled/Weathered Quartz)

Amethyst (SiO2 with iron impurities)

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Quartz (Druzy / Goldstone Gemstone Cabochon)

Silicon Dioxide (SiO2)

Goldstone (with Tiger's Eye and Quartz)

Aventurine glass (Synthetic SiO2 with Cu inclusions)

Labradorite cabochon

Labradorite, a calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈

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

Goldstone

Avventurina (Man-made Glass with Copper inclusions)

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Silicon

Element Si

Opalite

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

Banded Black Onyx (Chalcedony)

Silicon Dioxide (SiO₂)

Ametrine

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

Chalcanthite

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

Yellow faceted gemstone earrings, likely citrine or yellow beryl

Citrine: quartz, SiO₂; possible yellow beryl: Be₃Al₂Si₆O₁₈

Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)

Silicon Dioxide (SiO2) with metallic inclusions

Opalite

Synthetic glass (SiO2 + metal additions)

Citrine

Citrine (Silicon Dioxide, SiO2)

Iolite (Cordierite)

Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18

Smoky Quartz (with Druzy/Polished Edge)

Smoky Quartz (Silicon Dioxide, SiO2)

Painted River Rock

Artificially Coated Sedimentary Rock

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Synthetic Costume Accessory (Non-Geological)

Polyester and Acrylic Fiber (Anthropogenic polymer)

Lapis Lazuli

Lazurite-dominant metamorphic rock, Na8[Al6Si6O24]n(S,Cl,SO4,OH)2