Mineral (Synthetic)

Ruby ring (likely synthetic ruby)

Corundum, Al₂O₃; red color from chromium. The image alone cannot establish whether the stone is natural or lab-grown.

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Raw Topaz

Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2

Blue sapphire ring

Corundum (aluminum oxide, Al₂O₃), likely heat-treated sapphire

Amethyst gemstone ring

Quartz, purple variety — SiO₂

Diamond

Native Carbon (C)

Clear faceted gemstone, likely cubic zirconia

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

Opalite

Man-made Glass (SiO2 + additives)

Red faceted gemstone, possibly ruby (identification uncertain)

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

Blue faceted gemstones, likely blue sapphire

Corundum (Al₂O₃), blue varieties colored chiefly by iron and titanium

Pink faceted gemstone, likely synthetic cubic zirconia or pink sapphire

Uncertain from image; possible zirconium dioxide (cubic zirconia, ZrO₂) or corundum (pink sapphire, Al₂O₃)

Ruby (cushion-cut red gemstone)

Corundum, Al₂O₃; red color is typically caused by chromium

Opal cabochon

Opal, hydrated amorphous silica (SiO₂·nH₂O), likely common or Ethiopian precious opal

White cabochon gemstone, likely agate or chalcedony

Cryptocrystalline quartz (SiO₂), probably chalcedony/agate; exact identification is uncertain from the overexposed image

Faceted gemstone ring, likely smoky quartz or garnet in a metal setting

Not determinable from the photograph; possible quartz (SiO₂) or garnet-group silicate

Lapis Lazuli

Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Green Glass (often marketed as 'Obsidian' or 'Green Quartz')

Amorphous Silica (SiO2) with copper or chromium additives

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

Man-made opalescent glass

Colorless faceted gemstone, likely cubic zirconia

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

Blue-green faceted gemstone, likely turquoise or treated turquoise

Turquoise: hydrated copper–aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification is uncertain from the image

Opal-like cabochon ring stone

Likely common opal (hydrated amorphous silica, SiO₂·nH₂O); exact material uncertain from the photograph

Blue sapphire

Corundum (Al₂O₃), blue variety colored mainly by iron and titanium

Green faceted bead strand, likely dyed or synthetic material

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

Sapphire

Corundum (Al2O3)

Opalite

Man-made Glass (Synthetic Opalized Glass)

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Quartzite (Engineered Stone)

Silicon Dioxide (SiO2) based synthetic composite

Blue Goldstone

Auraventurine (Synthetic glass with cobalt and copper inclusions)

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Red corundum gemstone (likely synthetic ruby)

Ruby: corundum, aluminum oxide (Al₂O₃), chromium-colored; likely lab-grown material

Tumbled green beryl or glassy green gemstone

Likely beryl, Be₃Al₂Si₆O₁₈; possibly treated emerald or synthetic glass

Orange cabochon gemstone, likely amber or amber-like resin

Natural amber: fossilized plant resin (organic mineraloid), commonly succinite; exact identification requires testing

Rough Emerald (Beryl)

Emerald (Be3Al2(SiO3)6 with Cr/V impurities)

Blue Topaz (specifically London Blue or Swiss Blue based on color saturation)

Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Amethyst stud earrings

Amethyst, purple quartz (SiO₂)

Green faceted gemstone, likely tsavorite garnet

Tsavorite: green grossular garnet, Ca₃Al₂(SiO₄)₃

Red corundum (ruby-colored polished crystal)

Corundum, aluminum oxide (Al₂O₃); red color is typically caused by chromium

Chalcanthite (Likely Synthetic/Lab-Grown)

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

Dark blue polished stone pendant

Indeterminate; possibly sodalite, lapis lazuli, or blue slag/glass-like material