Synthetic Or Natural Fiber

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

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

Ruby

Corundum (Al2O3 with Chromium traces)

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Quartzite (Engineered Stone)

Silicon Dioxide (SiO2) based synthetic composite

Emerald

Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities

Green Obsidian Sphere (man-made glass)

Vitreous Silica with Chromium/Iron additives

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Blue cabochon gemstone, likely synthetic glass or dyed stone

Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli

Opal ring

Precious opal, hydrated amorphous silica (SiO₂·nH₂O), set in a metal ring

Blue gemstone, likely tumbled sapphire or blue spinel

Corundum (Al₂O₃) if sapphire; alternatively spinel (MgAl₂O₄)

Purple diamond (rough gem-quality diamond)

Diamond, crystalline carbon (C)

Opal ring (likely precious opal)

Hydrated amorphous silica, SiO₂·nH₂O; the pictured stone may be natural opal or a lab-created/imitation opal

Red faceted gemstone, possibly ruby (identification uncertain)

Ruby, if natural: corundum (Al₂O₃) colored by chromium

Sandstone (likely Fossilized Wood or Concrete Simulacrum)

Arenite / Silicified Wood / Anthropogenic Concrete

Cubic Zirconia (CZ)

Cubic Zirconium Dioxide (ZrO2)

Red corundum (ruby) crystal fragment

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

Opalite (a synthetic glass, often confused with Opal)

Silicon dioxide glass (SiO2nH2O, for natural opal)

Pink quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), likely rose quartz; possibly lab-created or treated

Opalite

Synthetic Opalite Glass

Hematite bead bracelet

Hematite (Fe₂O₃), likely polished or magnetically enhanced beads

Blue glassy mineral fragment, possibly sodalite or dyed/cobalt glass

Uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) if natural, but vivid blue color may indicate cobalt-colored glass

Opalite

Synthetic Glass (Simulated Opal)

Likely silicon carbide (carborundum)

Synthetic silicon carbide (SiC), likely blue-green crystalline grit

Blue chalcedony cabochon (probable)

Chalcedony, cryptocrystalline quartz; silicon dioxide (SiO₂)

Green faceted gemstone, likely emerald or synthetic emerald

Beryl, Be₃Al₂Si₆O₁₈, colored green by chromium and/or vanadium; identity cannot be confirmed visually

Diamond (or Cubic Zirconia simulant)

Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ

Blue sapphire (likely synthetic or treated corundum)

Corundum, aluminum oxide (Al₂O₃), blue from iron and titanium impurities

Iridescent coated quartz (likely synthetic/display gemstone)

Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually

Clear faceted gemstone, likely cubic zirconia

Synthetic zirconium dioxide (ZrO₂), probably cubic zirconia; exact identification requires testing

Opalite

Synthetic Opalised Glass

Likely clear quartz crystal (possibly cut/polished quartz or glass imitation)

Quartz, silicon dioxide (SiO₂)

Opal gemstone pendant

Opal (hydrated amorphous silica, SiO₂·nH₂O)

Green faceted bead strand, likely dyed or synthetic material

Uncertain; possibly green-dyed quartz, glass, or lab-created emerald-like material

Decorative gemstone bracelet or jewelry

Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads

Diamond (Baguette cut)

Carbon (C)

Faceted colorless gemstone, likely quartz or glass imitation

Most plausibly rock crystal (quartz, SiO₂); identity is uncertain because the photograph shows only intense facet reflections

Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)

Silicon Dioxide (SiO2) with inclusions/dye

Opalite crescent pendant

Opalite (man-made opalescent glass; not a natural mineral)

Colorless faceted gemstone, likely cubic zirconia

Synthetic cubic zirconia (zirconium dioxide, ZrO₂); identity is visual and not definitive

Faceted blue gemstone ring, likely synthetic spinel or glass; identity uncertain

Possibly synthetic blue spinel (MgAl₂O₄) or laboratory sapphire (Al₂O₃); the clear side stones may be cubic zirconia or glass

Cubic Zirconia (CZ)

Zirconium dioxide (ZrO2)

Green cabochon gemstone, likely glass-filled or synthetic emerald imitation

Uncertain; possible synthetic emerald (beryl, Be₃Al₂Si₆O₁₈) or green glass