Synthetic Polymer (Polylactic Acid)

Green iridescent glass cabochon or synthetic gemstone

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

Likely blue sapphire ring

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

Milky Quartz

Silicon Dioxide (SiO2)

Amber

Succinite / Fossilized Tree Resin

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

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

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Opalite

Synthetic Glass (Simulated Moonstone/Opal)

Sedimentary Rock with Crafts (Pet Rock)

Sedimentary rock decorated with synthetic materials

Blue Quartz / Glass Gemstone Pendant

SiO2 (Silicon Dioxide) or Synthetic Glass

Opalite

Synthetic glass (SiO2 + metal additions)

Opalite

Synthetic Opalite (Man-made glass)

Pink Dyed Agate

Silicon Dioxide (SiO2) with synthetic pigment

Dyed Quartzite

Metamorphosed Quartz (SiO2) with synthetic pigment

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye

Opalite

Synthetic Opalized Glass (SiO2 + additives)

Opalite (Synthetic Opalized Glass)

Synthetic Silicon Dioxide (SiO2) glass

Goldstone

N/A (Synthetic Glass with Copper Inclusions)

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Dyed Agate

Silicon Dioxide (SiO2) with synthetic dyes

Silicon Carbide (Carborundum)

Moissanite (SiC), though mostly synthetic

Red gemstone ring, likely synthetic ruby

Corundum (Al₂O₃), chromium-bearing; possibly lab-created ruby or red glass imitation

Emerald

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

Amber

Succinates (C10H16O)

Faceted red ruby

Corundum (Al₂O₃), colored red by chromium

Moissanite

Silicon Carbide (SiC)

Clear-stone silver-tone teardrop earring

The stones may be colorless quartz or glass; the image does not allow reliable identification. Metal setting appears silver-tone.

Red cabochon gemstone ring, likely synthetic ruby or red glass

Possibly corundum (Al₂O₃, chromium-colored); identity cannot be confirmed from the image

Clear Quartz (faceted) / Diamond Simulant

Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Diamond or Cubic Zirconia

Carbon (diamond) or Zirconium dioxide (cubic zirconia)

Faceted colorless gemstone, likely glass or diamond imitation

Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)

Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Sapphire

Corundum (Al2O3)

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock

Diamond (Faceted Colorless)

Diamond (Pure Carbon, C)

Red faceted gemstone, possibly ruby

Corundum (Al₂O₃), if ruby; image alone cannot confirm identity or natural origin

Colorless faceted gemstones, likely quartz (rock crystal)

Quartz, silicon dioxide (SiO₂), trigonal crystal system

Blue-violet faceted gemstone, likely amethyst

Quartz (SiO₂), purple variety colored mainly by iron impurities and irradiation

Black onyx or black obsidian bead bracelet

Likely chalcedony (microcrystalline quartz, SiO₂) if onyx; alternatively volcanic glass (obsidian)

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