Mineral Simulant (Synthetic Glass)

Goldstone

Aventurine Glass (SiO2 + Cu small inclusions)

Chipped Glass/Plastic Fragment

Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic

Opalite

Synthetic Opalite Glass / Opalized Glass

Clear Quartz (Faceted)

SiO2 - Silicon Dioxide

Opalite

Synthetic glass / Opalized glass

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

Silicon Carbide (Carborundum)

Silicon Carbide (SiC) / Moissanite (natural)

Opalite

Synthetic Opalised Glass

Diamond (or diamond simulant)

C

Color-change gemstone ring (stone possibly alexandrite or a synthetic imitation)

Undetermined from the image; alexandrite is chrysoberyl, BeAl₂O₄

Opalite

Man-made glass (traditionally simulated Opal)

Opalite

Synthetic Opalised Glass

Diamond (or Simulant)

Carbon (C)

Opalite Egg

Synthetic Glass (Simulated Opal)

Diamond (or Diamond Simulant)

Carbon (C)

Polished gemstone tower assortment

Primarily quartz varieties and simulants; apparent amethyst (SiO₂), rose quartz (SiO₂), clear quartz (SiO₂), fluorite (CaF₂), sodalite, malachite, and possibly dyed or composite stones

Diamond (or Simulant)

Carbon (C)

Diamond (or Simulant)

Carbon (C)

Opalite (Man-made Glass)

Synthetic Opalised Glass

Diamond ring (likely clear cut gemstone)

Diamond, crystalline carbon (C)

Rock Crystal (Clear Quartz)

Silicon dioxide (SiO2)

Mood Ring Stone

Liquid crystal thermotropic polymer

Blue cabochon gemstone, likely synthetic spinel or glass

Undetermined; possible synthetic cobalt-blue spinel (MgAl₂O₄) or colored glass

Opalite

Synthetic Opalite Glass

Blue crystal pendant (likely blue glass or synthetic crystal)

Not identifiable from the image; possibly synthetic quartz or glass, rather than a natural mineral

Opalite

Synthetic glass (SiO2 + impurities)

Blue Goldstone

Man-made glass with crystalline copper/cobalt inclusions

Opalite

Synthetic glass / Opaque silicious glass

Opalite (Synthetic Moonstone/Sea Opal)

Silicon Dioxide (SiO2) glass with metallic inclusions

Faceted colorless gemstone, likely cubic zirconia or diamond

Most likely synthetic cubic zirconia (ZrO₂); diamond (C) is a less certain alternative

Gemstone Ring

Various (Likely Glass, Cubic Zirconia, or assorted semi-precious stones)

Faceted clear gemstone ring, likely quartz or glass imitation

Unidentified colorless faceted material; quartz (SiO₂) is possible, but the image cannot distinguish it from glass or another gem

Opalite

Synthetic Silicon Dioxide (SiO2)

Green faceted or cabochon gemstone (possibly glass or synthetic)

Undetermined; possibilities include green beryl (Be₃Al₂Si₆O₁₈), quartz (SiO₂), or synthetic glass

Opalite-style glass pendant

Man-made opalescent glass (not natural opal)

Red gemstone, likely ruby

Corundum (Al₂O₃), colored red by chromium; identity cannot be confirmed from the photo

Blue Goldstone

Man-made glass infused with copper crystals

Small colored gemstone or glass cabochons (uncertain)

Not identifiable from the image; the pieces may be colored glass or synthetic stones rather than natural minerals.

Opalite

Synthetic opalescent glass

Opalite

Synthetic Opalized Glass

Opalite

Synthetic glass / Simulated opal

Blue-green faceted pendant stone

Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz