Mineral (Synthetic)

Opalite

Synthetic glass (SiO2 + impurities)

Opalite

Synthetic Opalite Glass

Rock Crystal (Clear Quartz)

Silicon dioxide (SiO2)

Opalite-style glass pendant

Man-made opalescent glass (not natural opal)

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

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

Loose faceted colorless gemstones, likely quartz or glass-like mineral chips

Most consistent with quartz (SiO₂), though the photograph cannot exclude synthetic cubic zirconia or glass

Opalite

Synthetic Opalite Glass / Opalized Glass

Opalite

Man-made glass (traditionally simulated Opal)

Cubic Zirconia (Jewelry Setting)

Zirconium Dioxide (ZrO2)

Gemstone Ring

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

Asphalt / Road Aggregate

Bituminous Conglomerate (synthetic)

Pink faceted gemstone, likely synthetic ruby or pink sapphire

Corundum (Al₂O₃), possibly chromium-colored ruby; synthetic origin likely

Note on Image Identification: Textile

N/A (Anthropogenic material)

Silicon Carbide (Carborundum)

Silicon Carbide, SiC

Opalite

Synthetic opalescent glass

Faceted gemstones, likely assorted quartz or glass-like gems

Not determinable from the photograph; possible quartz (SiO₂), topaz, or synthetic cubic zirconia

Opalite

Synthetic Opalized Glass

Blue Goldstone

Man-made glass with crystalline copper/cobalt inclusions

Goldstone

Aventurine Glass (Man-made)

Opalite Egg

Synthetic Glass (Simulated Opal)

Opalite

Synthetic Glass (SiO2 + impurities)

Opalite

Synthetic Silicon Dioxide (SiO2)

Opalite

Synthetic Opalized Glass

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

Amethyst quartz cluster

Quartz, SiO₂; purple variety amethyst

Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia)

Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)

Opalite

Synthetic glass / Opaque silicious glass

Costume Jewelry with Synthetic Gemstones

Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)

Ruby / Red Corundum

Al2O3 (Aluminum Oxide with Chromium trace)

Green faceted gemstone earrings, likely synthetic emerald-colored glass or cubic zirconia

Undetermined; possible glass (amorphous silicate) or synthetic cubic zirconia (ZrO₂)

Man-made Synthetic Material (Plastic/Composite)

Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)

Red cabochon gemstone ring (likely glass or synthetic stone)

Undetermined; the image does not establish a natural mineral identity

Clear Quartz crystals on a Matrix base (Geode fragment)

Silicon Dioxide (SiO2)

Red glassy mineral specimen, likely synthetic ruby or red spinel

Most consistent with synthetic corundum (Al₂O₃, ruby) or synthetic spinel (MgAl₂O₄); exact identification requires testing

Opalite

Synthetic Glass (Simulated Opal)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Small clear crystal, possibly quartz or glass-like gemstone

Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia

Purple cabochon gemstone, likely amethyst or purple sapphire/spinel

Indeterminate from image; possible quartz (SiO₂), corundum (Al₂O₃), or spinel (MgAl₂O₄)

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Cubic Zirconia

Zirconium dioxide (ZrO2)

Limonite (Iron Ore)

Limonite; FeO(OH)·nH2O

Small stud earring with a purple gemstone (possibly amethyst)

Possible amethyst, a purple variety of quartz (SiO₂); identification is uncertain from the image