Synthetic (Man Made Glass)

Amethyst quartz cluster

Quartz, SiO₂; purple variety amethyst

Chalcanthite (Likely Synthetic/Lab-Grown)

Hydrated copper(II) sulfate (CuSO4·5H2O)

Imitation or Cultured Pearl Earrings

Calcium carbonate (CaCO3) or synthetic polymer/glass

Diamond

Natural Diamond (Carbon, C)

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Clear Quartz (faceted) / Diamond Simulant

Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

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

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

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

Ruby / Red Corundum

Al2O3 (Aluminum Oxide with Chromium trace)

Ruby (or potential synthetic/imitation)

Corundum (Al2O3)

The user-provided image does not contain a rock or mineral specimen

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

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

Pink faceted gemstone ring (stone uncertain)

Possibly tourmaline or glass; image alone cannot establish identity

Red cabochon gemstone ring, likely synthetic ruby or red glass

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

Faceted purple gemstone, possibly amethyst

Likely quartz (SiO₂), variety amethyst; identification is uncertain from the image

Quartz (Druzy / Goldstone Gemstone Cabochon)

Silicon Dioxide (SiO2)

Tumbled blue-green stone, possibly aquamarine or chalcedony

Indeterminate from image; possibilities include beryl (Be₃Al₂Si₆O₁₈) or cryptocrystalline quartz (SiO₂)

Blue-violet faceted gemstone, likely amethyst

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

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Faceted quartz crystal sphere (likely rock crystal)

Quartz, silicon dioxide (SiO₂)

Strawberry Quartz (Hematoid Quartz)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Ornamental ring with likely blue sapphire and diamonds

Blue corundum (sapphire), Al₂O₃; surrounding stones appear diamond, C, set in gold-colored metal

Colorless faceted gemstone, likely glass or cubic zirconia

Probably cubic zirconia (zirconium dioxide, ZrO₂); diamond cannot be confirmed visually

Cubic Zirconia

Zirconium dioxide (ZrO2)

Colorless faceted gemstones, likely quartz (rock crystal)

Quartz, silicon dioxide (SiO₂), trigonal crystal system

Emerald (cut gemstone)

Beryl, Be₃Al₂Si₆O₁₈, colored green mainly by chromium and/or vanadium

Hematite Beads

Hematite (Fe2O3)

Black faceted gemstone, possibly black spinel or onyx

Undetermined; candidates include spinel (MgAl₂O₄) or chalcedony (SiO₂)

Cat's Eye Moonstone (Simulated/Synthetic or natural Cat's Eye Quartz/Glass)

There is no single scientific name. The appearance suggests either: Moonstone (feldspar group), Cat's Eye Quartz (SiO2), Apatite (Ca5(PO4)3(F,Cl,OH)), or most likely a synthetic material such as Fiber Optic Glass or 'Opalite' (a type of glass).

Pink-purple faceted gemstone ring (likely garnet)

Likely almandine–pyrope garnet, (Fe,Mg)₃Al₂(SiO₄)₃; identification from the image is uncertain.

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Pink corundum (likely synthetic or treated sapphire)

Corundum, Al₂O₃; pink coloration commonly from chromium or treatment

Purple faceted gemstone, likely amethyst or synthetic colored corundum

Amethyst: quartz (SiO₂); possible alternative: purple corundum (Al₂O₃) or glass

Ruby / Red Tourmaline

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

Diamond (or Diamond Simulant / Melee)

Carbon (C) / or synthetic cubic zirconia (ZrO2)

Faceted colorless gemstone, likely glass or diamond imitation

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

Faceted gemstones, likely assorted quartz or glass-like gems

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

Faceted colorless gemstone, likely quartz (rock crystal)

Quartz, SiO₂

Blue glass-like gemstone, likely synthetic spinel or glass

Uncertain; possibilities include synthetic cobalt-blue spinel (MgAl₂O₄) or cobalt-colored glass

Tumbled amethyst

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

Blue faceted gemstone, likely synthetic spinel or sapphire

Undetermined from image; possible synthetic corundum (Al₂O₃) or spinel (MgAl₂O₄)

Faceted citrine-colored gemstone (likely synthetic/display stone)

Quartz, SiO₂, if natural citrine; possibly synthetic sapphire or glass imitation