Mineral (Synthetic)

Blue cabochon gemstone ring

Uncertain; likely blue sapphire (corundum, Al₂O₃), blue topaz, or synthetic glass/spinel

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Tumbled opalite (likely man-made glass)

Opalite glass; a synthetic opalescent glass, not a natural mineral species

Faceted red ruby

Corundum (Al₂O₃), colored red by chromium

Cubic Zirconia (simulant) or Diamond

ZrO2 (Cubic Zirconia) or C (Diamond)

Ruby / Red Tourmaline

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

Diamond (Faceted Colorless)

Diamond (Pure Carbon, C)

Dyed Alum or Dyed Quartz (Ornamental Crystal)

Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]

Parti Sapphire

Corundum (Al2O3)

Crackled Quartz (Dyed)

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3)

Sedimentary Rock with Crafts (Pet Rock)

Sedimentary rock decorated with synthetic materials

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Faceted colorless gemstone, likely quartz (rock crystal)

Quartz, SiO₂

Note: Item is not a geological specimen

Polyester mesh and Ethylene-vinyl acetate (EVA) polymer

Red gemstone ring, likely synthetic ruby or red spinel

Ruby: corundum (Al₂O₃); spinel: MgAl₂O₄; exact identity requires testing

Faceted transparent gemstone, likely glass or cubic zirconia

Uncertain from image; possible cubic zirconia (zirconium dioxide, ZrO₂) or glass imitation

Opalite

Synthetic Glass (Simulated Opal)

Ruby (mounted cabochon)

Corundum, Al₂O₃; red color typically from chromium

Garden Quartz (Lodalite)

Silicon Dioxide with various mineral inclusions (SiO2)

Digital Multimeter (Synthetic Object)

Digital Multimeter (DMM)

Cubic Zirconia (Faceted)

Zirconium dioxide (ZrO2)

Synthetic Sapphire and Ion-X Glass

Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass

Corundum (Pink Sapphire / Ruby)

Al2O3 (Aluminum Oxide)

Red glassy cabochon, likely synthetic ruby or red glass

Uncertain; possible synthetic corundum (Al₂O₃, chromium-colored) or man-made glass

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

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

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

Green iridescent glass cabochon or synthetic gemstone

Likely synthetic glass; possibly coated synthetic quartz or lab-created green gemstone

Opalite

Synthetic Opalised Glass

Diamond (or Cubic Zirconia)

Cubic Carbon (C) or Zirconium Dioxide (ZrO2)

Star sapphire ring

Corundum (Al₂O₃), likely asteriated sapphire

Milky Quartz

Silicon Dioxide (SiO2)

Red glass-like crystal, likely synthetic ruby or red glass

Uncertain from image; possible corundum (ruby), Al₂O₃, or synthetic glass

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

Opalite

Synthetic Opalite (Man-made glass)

Pink Dyed Agate

Silicon Dioxide (SiO2) with synthetic pigment

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye

Opalite (Synthetic Opalized Glass)

Synthetic Silicon Dioxide (SiO2) glass

Dyed Agate

Silicon Dioxide (SiO2) with synthetic dyes

Silicon Carbide (Carborundum)

Moissanite (SiC), though mostly synthetic

Red corundum (ruby) crystal fragment

Corundum, Al₂O₃; ruby is red corundum colored mainly by chromium