Synthetic (Man Made Glass)

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable

Tourmalinated Quartz

Crystalline Silicon Dioxide with Schorl inclusions (SiO2 + NaFe3Al6(BO3)3Si6O18(OH)4)

Likely amethyst cabochon ring

Quartz, SiO₂; purple coloration from trace iron and irradiation

Black-and-white agate geode pendant

Agate (microcrystalline quartz, SiO₂), likely a hollow geode slice with chalcedony and drusy quartz

Pink amethyst or pale pink quartz gemstone

Quartz, SiO₂; pink coloration may result from microscopic inclusions or irradiation-related defects

Faceted transparent gemstone pendant

Likely cubic zirconia (zirconium dioxide, ZrO₂); possibly diamond or synthetic moissanite

Painted Rock

Weathered Sedimentary Rock (Painted)

Painted River Rock

Painted Quartzite or Smooth Siltstone

Rough Citrine Quartz

Silicon Dioxide (SiO2) with ferric iron impurities

Faceted blue gemstone, likely blue topaz or synthetic spinel

Topaz (Al₂SiO₄(F,OH)₂) or synthetic spinel (MgAl₂O₄); image insufficient for certainty

Obsidian

Volcanic Glass (Amorphous Silicon Dioxide)

Obsidian

Volcanic glass

Sapphire

Corundum (Al2O3)

Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)

Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))

Chert (Flint)

Silicon Dioxide (SiO2)

Polished amethyst-bearing quartz

Quartz, SiO₂; purple coloration from irradiation and trace iron

Amber (Simulated/Faturan Style)

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

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Clear quartz sphere

Quartz (silicon dioxide, SiO₂), likely rock crystal or low-grade milky quartz

Blue resin-coated or dyed stone cabochon

Likely dyed chalcedony/agate (microcrystalline quartz, SiO₂); exact material is uncertain from the image

Yellow-orange faceted gemstone, likely citrine or yellow topaz

Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂

White Sapphire

Corundum (Al2O3)

Polished tiger’s-eye

Quartz variety, SiO₂, with crocidolite-derived iron inclusions

Faceted yellow-green gemstone, likely peridot

Olivine, typically forsterite-rich (Mg₂SiO₄)

Chert

Microcrystalline Quartz (SiO2)

Tumbled amethyst

Amethyst, purple quartz (SiO₂)

Granodiorite

Granodiorite

Green Aventurine

Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)

Yellow Sapphire

Corundum (Al2O3:Fe)

Tumbled blue chalcedony (possibly blue agate)

Microcrystalline quartz, SiO₂; chalcedony variety

Beaded gemstone bracelet

Indeterminate; likely small polished mineral beads, possibly turquoise or dyed stone, with metal and glass components

Rose Quartz

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

Diamond (in a gold ring)

Diamond (pure carbon, C)

Black spinel bead strand

Spinel, magnesium aluminum oxide (MgAl₂O₄)

Likely citrine or yellow glass imitation in a silver-tone bracelet

Citrine: quartz, SiO₂; exact material cannot be confirmed visually

Champagne topaz (likely)

Topaz, Al₂SiO₄(F,OH)₂

Obsidian

Volcanic glass (SiO2)

Blue Sapphire

Corundum (Al2O3)

Rough Sapphire (Corundum)

Corundum (Al2O3)

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide)

Lapis Lazuli

Lazurite-dominant metamorphic rock, Na8[Al6Si6O24]n(S,Cl,SO4,OH)2

Tanzanite earrings

Tanzanite, blue-violet zoisite (Ca₂Al₃(SiO₄)₃(OH))