Synthetic (Not A Rock Or Mineral)

Rough White Zircon

Zircon (Zirconium Silicate, ZrSiO4)

Strawberry Quartz (or Sunstone / Tumbled Quartz)

Silicon Dioxide (SiO2) with Hematite/Lepidocrocite inclusions

Blue opalite (often sold as synthetic opal)

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

Lapis Lazuli (polished cabochon)

Lazurite-rich metamorphic rock (approx. Na6Ca2Al6Si6O24(SO4,S,Cl)2)

Red glass-like crystal, likely synthetic ruby or red glass

Uncertain from image; possible corundum (ruby), Al₂O₃, or synthetic glass

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Rough Citrine Quartz

Silicon Dioxide (SiO2) with ferric iron impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Dyed Agate Slice

Silicon Dioxide (SiO2) with artificial dyes

Diamond (or Cubic Zirconia)

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

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Sapphire

Corundum (Al2O3)

Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Polished ruby cabochon (likely synthetic or treated)

Corundum, aluminum oxide (Al₂O₃), colored red by chromium

Blue-green tumbled gemstone, likely turquoise or dyed turquoise

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

White Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Red goldstone beads

Goldstone (man-made copper-bearing glass; not a natural mineral)

Opalite

Synthetic Glass (Hydrated Silica Simulant)

Synthetic Ruby (Jewel Bearings)

Synthetic Corundum (Al2O3 doped with Chromium)

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Emerald

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

Blue Goldstone

Aventurine Glass

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Iron-rich weathered rock or limonite/goethite nodule

Limonite (mixture dominated by goethite, FeO(OH)·nH₂O), possibly with quartz or clay

Bauxite

Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Likely weathered iron-rich rock or mineral fragment

Indeterminate; possibly limonite/goethite-rich material with quartz or feldspar

Polished brecciated jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), with iron-oxide coloration and possible breccia fragments

Strawberry Quartz (Hematoid Quartz)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Smoky Quartz

Silicon Dioxide (SiO2)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Cubic Zirconia (as a jewelry specimen)

Zirconium dioxide (ZrO2)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Gemstone jewelry ensemble

Likely mixed gemstone and glass-bead jewelry; exact stones cannot be determined from the image

Blue gemstone ring, likely lapis lazuli

Lapis lazuli: lazurite-rich metamorphic rock, chiefly (Na,Ca)8(AlSiO4)6(S,SO)2, commonly with calcite and pyrite

Clear quartz crystal sphere

Quartz (silicon dioxide, SiO₂)

Black spinel bead strand

Spinel, magnesium aluminum oxide (MgAl₂O₄)

Note: Item is not a geological specimen

n/a

Amber (Simulated/Faturan Style)

Resin mix (Likely Phenolic/Celluloid if synthetic, Succinite if natural)

Hematite

Iron(III) oxide (Fe2O3)