Mineral (Synthetic Glass)

Red gemstone ring, likely garnet or synthetic ruby

Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish

Smoky Quartz

Silicon Dioxide (SiO2)

Blue-and-white opalite sphere

Opalite (commercial synthetic or glass-based imitation; not true opal), typically silica glass or synthetic opalescent material

Polished purple gemstone, likely amethyst

Amethyst: purple quartz, silicon dioxide (SiO₂)

Pink quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), likely rose quartz; possibly lab-created or treated

Blue aventurine quartz (likely)

Quartz, silicon dioxide (SiO₂), probably blue aventurine variety

Blue slag glass / industrial glass fragment

Artificial silicate glass, composition variable; likely copper- or cobalt-colored furnace slag

Goldstone (likely blue-free synthetic goldstone pendant)

Synthetic aventurine glass; silica glass with dispersed metallic copper crystals

Ruby ring

Corundum (Al₂O₃), red variety colored mainly by chromium

Cubic Zirconia

Zirconium dioxide (ZrO2)

Tumbled opalite (likely synthetic glass)

Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species

Black cabochon pendant, likely onyx or black glass

Most likely black chalcedony (microcrystalline quartz, SiO₂); the surrounding stones may be cubic zirconia or glass

Green faceted gemstone, likely synthetic glass or chrome-dyed stone

Undetermined; possibilities include green tourmaline, synthetic emerald, glass, or dyed quartz

Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)

Silicon Dioxide (SiO2) with metallic inclusions

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Opalite

Man-made opalescent glass (SiO2 + metal oxides)

Blue glassy mineral specimen, possibly dyed or synthetic

Uncertain; possible blue fluorite (CaF₂), dyed chalcedony, or man-made glass

Raw ruby (corundum)

Ruby variety of corundum, aluminum oxide (Al₂O₃), colored chiefly by chromium

Faceted quartz crystal sphere (likely rock crystal)

Quartz, silicon dioxide (SiO₂)

Amethyst cabochon

Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

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

Alexandrite: chrysoberyl, BeAl₂O₄; exact identification requires gemological testing

Goldstone

Avventurina (Man-made Glass with Copper inclusions)

Quartz (Druzy / Goldstone Gemstone Cabochon)

Silicon Dioxide (SiO2)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Fluorite

Calcium Fluoride (CaF2)

Carved labradorite fish

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

Red/pink faceted gemstone, likely synthetic ruby or red glass

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

Opalite-style pendant (likely synthetic glass, not natural opal)

Opalescent glass; commonly sold as “opalite” (not a recognized mineral species)

Amethyst (Tumbled)

Silicon Dioxide (SiO2) with Fe3+ impurities

Tiger’s-eye

Chatoyant quartz (SiO₂), commonly pseudomorphic quartz after crocidolite

Corundum (Pink Sapphire / Ruby)

Al2O3 (Aluminum Oxide)

Ruby / Red Tourmaline

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

Opalite

Man-made Opalized Glass (Synthetic Glass)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

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

Decorative opal-like turtle mosaic

Likely imitation or assembled opal material; exact stones cannot be confirmed visually

Smoky Quartz

Silicon Dioxide (SiO2)

Red faceted gemstone, likely synthetic ruby or red glass

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

Smoky Quartz

Silicon Dioxide (SiO2)

Opalite

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

Diamond (or synthetic simulant)

Cubic C (Carbon)