Synthetic Polymer (Polylactic Acid)

Diamond (or Clear Quartz / Cubic Zirconia)

Carbon (C) or Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Zirconia (Ceramic) & Ion-X Glass

Zirconium Dioxide (ZrO2) and Ion-strengthened Aluminosilicate Glass

Engineerged Quartz (Quartz Composite)

SiO2 (Silicon Dioxide) in a polymer resin matrix

Clear Quartz (faceted) / Diamond Simulant

Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Amber

Succinate (Fossilized Tree Resin)

Amber

Succinate (Fossilized Tree Resin)

Emerald

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

Costume Jewelry Gemstones (Emerald-imitation and semi-precious beads)

BeCuAl6Si6O18 (Beryl structure), frequently simulated by glass or synthetic spinel

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Amber

Succinite (fossilized tree resin)

Amber

Succinite (fossilized resin, C10H16O)

Amber

Succinates (Organic Fossilized Resin)

Unidentified polished dark gemstone cabochon

Possibly hematite, obsidian, jet, or dark agate; image insufficient for a definitive identification

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Diamond (or Cubic Zirconia)

Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ

Note: The image provided is a fabric sock, not a geological specimen.

Polyester-Cotton Blend with Elastane

Ametrine

SiO2 (Silicon Dioxide with iron impurities)

Cubic Zirconia (as a jewelry specimen)

Zirconium dioxide (ZrO2)

Likely blue sapphire ring

Corundum (Al₂O₃), likely sapphire; surrounding stones may be diamonds or colored gems

Milky Quartz

Silicon Dioxide (SiO2)

Clear quartz crystal sphere

Quartz (silicon dioxide, SiO₂)

Blue Sapphire

Corundum (Al2O3)

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Cubic Zirconia (CZ)

Cubic Zirconium Dioxide (ZrO2)

Moissanite

Silicon Carbide (SiC)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Blue Sapphire (likely lab-grown or treated)

Corundum (Aluminum Oxide, Al2O3)

Amber

Succinite / Fossilized Tree Resin

Amber

Fossilized tree resin (Amorphous organic polymer)

Pink corundum (likely synthetic or treated sapphire)

Corundum, Al₂O₃; pink coloration commonly from chromium or treatment

Diamond or Cubic Zirconia

Carbon (diamond) or Zirconium dioxide (cubic zirconia)

Blue Quartz / Glass Gemstone Pendant

SiO2 (Silicon Dioxide) or Synthetic Glass

Diamond (or Cubic Zirconia simulant)

C (Carbon) or ZrO2 (Zirconium Dioxide)

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Opalite

Opalescent Glass (SiO2 + coloring agents)

Faceted Diamond or Cubic Zirconia

Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ

Pink/red faceted gemstone, likely synthetic ruby or pink sapphire

Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material

Opalite

Synthetic Glass (Amorphized Silicon Dioxide)

Amber

Succinates (C10H16O)

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

Alexandrite: chrysoberyl, BeAl₂O₄; exact identification requires gemological testing