Synthetic (Not A Natural Rock)

Red cabochon gemstone ring, likely synthetic ruby or red glass

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

Goldstone

Aventurine Glass (Man-made)

Ruby (Corundum in Ring Setting)

Corundum (Al2O3:Cr)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Blue gemstone ring, likely synthetic or natural blue topaz

Topaz, Al₂SiO₄(F,OH)₂ (visual identification uncertain)

Opalite

Synthetic Opalized Glass / Man-made Glass

Painted River Rock

Painted Quartzite or Smooth Siltstone

Blue opalite (often sold as synthetic opal)

Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)

Red tourmaline (rubellite), faceted gemstone

Elbaite, a lithium-bearing tourmaline; Na(Li₁.₅Al₁.₅)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

Smoky Quartz

Silicon Dioxide (SiO2)

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

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Blue Quartz / Glass Gemstone Pendant

SiO2 (Silicon Dioxide) or Synthetic Glass

Opalite

Synthetic Glass (Amorphized Silicon Dioxide)

Blue cabochon gemstone, likely blue sapphire

Corundum (Al₂O₃), colored blue by trace iron and titanium

Faceted purple-blue beads, likely synthetic glass or treated gemstone

Indeterminate; possible synthetic corundum, synthetic spinel, or dyed quartz (SiO₂)

Garnet ring

Likely almandine or pyrope garnet, an Fe–Mg–Al silicate in the garnet group; exact identity cannot be confirmed visually

Diamond (in jewelry)

Cubic Carbon (C)

Goldstone (Brown)

Aventurine glass

Opalite

Synthetic Opalized Glass (SiO2 + additives)

Opalite

Synthetic Glass (Simulated Opal)

Ruby

Corundum (Al2O3)

Blue-violet faceted gemstone, likely amethyst

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

Opalite (Synthetic Opalized Glass)

Synthetic Silicon Dioxide (SiO2) glass

Cubic Zirconia

Zirconium dioxide (ZrO2)

Diamond (or Cubic Zirconia simulant)

C (Carbon) or ZrO2 (Zirconium Dioxide)

Diamond (or Cubic Zirconia)

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

Diamond or Cubic Zirconia

Carbon (diamond) or Zirconium dioxide (cubic zirconia)

Ruby (mounted cabochon)

Corundum, Al₂O₃; red color typically from chromium

Emerald

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

Sapphire

Corundum (Al2O3)

Silicon Carbide (Carborundum)

Moissanite (SiC), though mostly synthetic

Small rough mineral/rock specimen (not confidently identifiable)

Undetermined; image detail is insufficient for a reliable identification

Faceted red gemstone, likely ruby

Corundum (Al₂O₃), colored red by chromium; identification from the image is uncertain

Blue Sapphire (likely lab-grown or treated)

Corundum (Aluminum Oxide, Al2O3)

Turquoise ring

Turquoise, hydrated copper–aluminum phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O)

Blue Sapphire

Corundum (Al2O3 with Cr, Fe, and Ti trace elements)

Opalite

Opalescent Glass (SiO2 + coloring agents)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Paving-concrete aggregate with a rounded stone

Polymictic gravel aggregate; the central clast appears to be weathered sandstone or volcanic rock

Diamond (or Cubic Zirconia simulant)

Carbon (C) / Zirconium dioxide (ZrO2)

Weathered, iron-stained rock (likely metamorphic)

Indeterminate from photograph; possibly quartz-rich gneiss or schist