Manufactured Glass (Simulant)

Goldstone

Not a natural mineral or rock. It is an ornamental glass.

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)

Opalite

Synthetic Glass / Man-made Opal Simulant

Green glass-like cabochon, likely synthetic glass or resin

Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin

Cubic Zirconia

Zirconium dioxide (ZrO2)

Colorless faceted gemstone, likely cubic zirconia

Synthetic cubic zirconia (zirconium dioxide, ZrO₂); identity is visual and not definitive

Cubic Zirconia (Set in Jewelry)

Zirconium Dioxide (ZrO2)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Colorless faceted gemstone (most likely synthetic cubic zirconia)

Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond

Green Obsidian Sphere (man-made glass)

Vitreous Silica with Chromium/Iron additives

Opalite (a synthetic glass)

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

Colorless faceted gemstone (likely cubic zirconia)

Cubic zirconia, ZrO₂ (synthetic zirconium dioxide); possibly synthetic glass or lab-grown diamond

Colorless faceted gemstone (likely cubic zirconia)

Cubic zirconia, zirconium dioxide (ZrO₂); possibly synthetic quartz or glass imitation

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond

Diamond (or diamond simulant)

C

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable

Cubic Zirconia (Faceted)

Zirconium dioxide (ZrO2)

Diamond (or Simulant)

Carbon (C)

Diamond (or Simulant)

Carbon (C)

Clear Quartz (Faceted)

SiO2 - Silicon Dioxide

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

Ruby (Faceted)

Corundum (Al2O3:Cr)

Diamond (or Diamond Simulant)

Carbon (C)

Faceted Clear Quartz or Diamond Simulant

Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic

Gemstone Ring

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

Diamond (or Diamond Simulant)

Carbon (C) or Zirconium dioxide (ZrO2) for CZ

Silicon Carbide (Carborundum)

Silicon Carbide (SiC) / Moissanite (natural)

Opalite

Synthetic Glass (Hydrated Silica Simulant)

Diamond (or Diamond Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)

Opalite

Synthetic Opalized Glass / Man-made Glass

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant

Diamond (or Diamond Simulant)

Carbon (C)

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Chipped Glass/Plastic Fragment

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

Rhinestone

Artificial Glass/Crystal

Diamond (or synthetic simulant)

Cubic C (Carbon)

Colorless Gemstone (possibly Diamond or Cubic Zirconia)

C (Diamond) or ZrO2 (Cubic Zirconia)

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)

Borosilicate Glass (Manufactured)

SiO2 + B2O3 (Silicon dioxide and Boron trioxide)

Opalite

Man-made glass (traditionally simulated Opal)

Sea Glass

Amorphous silicon dioxide (glass)