Mineral Simulant (Synthetic Glass)

Blue Goldstone

Aventurine Glass (Silicon Dioxide with metal inclusions)

Blue sapphire (likely synthetic or treated corundum)

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

Purple faceted gemstone, possibly amethyst

Unconfirmed from image; if amethyst, quartz (SiO₂)

Dyed turquoise bead

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or reconstructed turquoise

Polished blue chalcedony or glass-like quartz specimen

Chalcedony (microcrystalline SiO₂), possibly treated or synthetic; exact identification requires testing

Blue Sapphire

Corundum (Al2O3)

Ruby (Corundum)

Corundum (Aluminum Oxide) with chromium trace elements, Al2O3

Ruby

Corundum (Aluminium Oxide with Chromium impurities, Al2O3:Cr)

Ruby (Corundum in Ring Setting)

Corundum (Al2O3:Cr)

Blue sapphire

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

Diamond

Pure Carbon (C)

Peridot gemstone pendant

Olivine, gem-quality forsteritic olivine (approximately (Mg,Fe)₂SiO₄)

Hematite

Iron(III) oxide (Fe2O3)

Faceted blue gemstone, likely blue sapphire

Corundum (Al₂O₃); identification from the image is provisional

Faceted yellow gemstone, likely citrine

Citrine (quartz), SiO₂; possibly yellow sapphire or synthetic glass without testing

Faceted red gemstone, likely ruby

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

Red cabochon ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), possibly chromium-bearing ruby; the image cannot establish whether it is natural or synthetic

Red faceted gemstone, possibly ruby (identification uncertain)

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

Diamond (likely rough or included fragment)

Diamond, crystalline carbon (C), cubic crystal system

Emerald

Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities

Acrylic or Resin (Synthetic Imitation)

Polymethyl Methacrylate (PMMA) or Polyepoxide

Synthetic Blue Aura Quartz

Silicon Dioxide (SiO2) with Metallic Infusion

Faceted yellow-brown gemstone earring

Likely citrine (quartz, SiO₂), though treated quartz or synthetic glass cannot be confirmed from the image

Dyed Blue Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

White Sapphire

Corundum (Al2O3)

Aquamarine

Aquamarine (Beryl variety); Be3Al2Si6O18

Bismuth

Bismuth (Bi)

Staurolite (Cross Stone)

Staurolite (Fe2+2Al9Si4O23(OH))

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Ruby

Corundum (Al2O3) with Chromium traces

Lapis Lazuli

Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Blue sapphire (faceted gemstone)

Corundum, Al₂O₃; blue color typically from trace iron and titanium

Red Agate (Carnelian)

Silicon Dioxide (SiO2)

Emerald

Beryl (Be3Al2(SiO3)6)

Blue faceted gemstone, likely synthetic sapphire or blue spinel

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

Gemstone stud earrings, likely set with clear stones

The stones may be diamond (carbon, C) or colorless cubic zirconia (ZrO₂); the image is insufficient to distinguish them.

Ruby

Corundum (Al2O3)

Opal ring

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

Composite Turquoise or Reconstituted Turquoise with Copper inclusions

CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes

Star Ruby

Corundum (Al2O3)

Emerald

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