Mineral (Synthetic)

Black onyx or black spinel ring stone

Likely chalcedony (SiO₂), variety black onyx; possibly synthetic spinel or glass

Assorted gemstone jewelry

Mixed natural and synthetic gemstone cabochons and faceted stones; individual species cannot be determined reliably from this image

Synthetic Resin Charm (Seal Shape)

Polymer Resin with plastic glitter / Polyethylene terephthalate glitters

Likely diamond accent

Diamond (crystalline carbon, C)

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Corundum

Corundum (Al2O3)

Turquoise ring

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

Tanzanite earrings

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

Anthracite Coal

Anthracite (Carbon ≥ 86%)

Faceted yellow-green gemstone, likely peridot

Olivine, typically forsterite-rich (Mg₂SiO₄)

Lapis Lazuli

Lapis lazuli (complex rock; primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Diamond (Faceted)

Diamond (Pure Carbon, C)

Champagne topaz (likely)

Topaz, Al₂SiO₄(F,OH)₂

Gemstone jewelry ensemble

Likely mixed gemstone and glass-bead jewelry; exact stones cannot be determined from the image

Opal

Hydrous silicon dioxide (SiO2·nH2O)

Pearls (likely freshwater cultured pearls)

Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin

Diamond (appearing as a jewelry centerpiece)

Diamond (Formula: C)

Ruby (Faceted)

Corundum (Al2O3 with Cr trace elements)

Star ruby cabochon ring

Corundum, Al₂O₃ (ruby variety), displaying asterism

Diamond-set ring (likely lab-grown or natural diamonds)

Diamond, crystalline carbon (C)

Blue glass-like cabochon, likely dyed or synthetic material

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

Yellow Sapphire

Corundum (Al2O3:Fe)

Red faceted gemstone ring

Likely synthetic ruby or red spinel; exact identification requires testing

Clear faceted gemstone, likely quartz (rock crystal)

Quartz, silicon dioxide (SiO₂); exact identity cannot be confirmed from the glare-heavy image

Blue Opal Inlay (Simulated/Lab-created)

Hydrated Amorphous Silica (SiO2·nH2O) with polymer resin

Tumbled amethyst

Amethyst, purple quartz (SiO₂)

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

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

Blue Goldstone

Aventurine Glass (SiO2 with Cobalt/Copper inclusions)

Blue Goldstone

Aventurine Glass

Sapphire

Corundum (Al2O3)

Red-orange cabochon, likely carnelian or glass imitation

Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored

Diamond (Faceted)

Carbon (C)

Yellow-orange faceted gemstone, likely citrine or yellow topaz

Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Blue topaz-style pendant gemstone

Likely blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm the stone or whether it is natural or synthetic.

Bismuth

Bismuth (Bi)

Opal cabochon

Hydrated amorphous silica, SiO₂·nH₂O; likely common or synthetic opal

Ruby in matrix (likely ruby-bearing corundum)

Corundum, aluminum oxide (Al₂O₃), chromium-bearing variety

Ruby cabochons

Corundum, aluminum oxide (Al₂O₃), colored red by chiefly chromium

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

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

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

Opal (in Jewelry Setting)

Hydrated Silicon Dioxide (SiO2·nH2O)