Synthetic Or Natural Fiber

Tiger's Eye (often misinterpreted as Gold Ore in this context)

Pseudomorph of Quartz after Crocidolite (SiO2)

Fursuit (Synthetic Fur Specimen)

Canis anthropomorphus syntheticus

Gemstone-set silver jewelry piece

Likely mixed faceted gemstones in a silver-colored metal setting; stones may include sapphire, ruby/garnet, and yellow sapphire or citrine, but the image is insufficient for species-level identification.

Chalcanthite (Likely Synthetic/Lab-Grown)

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

Blue chalcedony or blue quartz bead bracelet

Microcrystalline quartz, SiO₂ (chalcedony); possibly treated blue quartz

Blue Sapphire

Corundum (Al2O3)

Ruby (in jewelry)

Corundum (Al2O3 with Chromium traces)

Blue-gray chalcedony (likely blue agate)

Microcrystalline quartz, SiO₂

Dyed pink agate slice

Agate (microcrystalline quartz, SiO₂), commonly chalcedony with artificial dye

Turquoise

Hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Polished honey-yellow quartz-like crystal

Quartz (SiO₂), possibly citrine or heat-treated amethyst

Emerald

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

Staurolite (Cross Stone)

Staurolite (Fe2+2Al9Si4O23(OH))

White Sapphire

Corundum (Al2O3)

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

White cabochon gemstone, likely agate or chalcedony

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

Blue chalcedony (likely dyed or polished)

Chalcedony, microcrystalline quartz (SiO₂)

Selenite (satin spar gypsum)

Gypsum, CaSO₄·2H₂O; fibrous variety commonly called satin spar

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

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

Dyed Blue Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Carved labradorite fish

Labradorite, calcium-rich plagioclase feldspar (approximately (Ca,Na)(Al,Si)₄O₈)

Tumbled blue chalcedony (likely common blue quartz)

Microcrystalline quartz, SiO₂; chalcedony variety

Opal (in Jewelry Setting)

Hydrated Silicon Dioxide (SiO2·nH2O)

Faceted blue gemstone, likely aquamarine

Aquamarine—blue beryl, Be₃Al₂Si₆O₁₈; identification is uncertain from the image alone

Green Tiger's Eye

Quartz (SiO2) with fibrous crocidolite inclusions (dyed)

Tumbled blue chalcedony (likely blue agate)

Microcrystalline quartz, SiO₂; chalcedony/agate variety

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

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

Diamond

Carbon (C), Native Element

Faceted glass-like gemstone (likely synthetic quartz or cubic zirconia)

Identification uncertain; possibilities include synthetic quartz (SiO₂) or cubic zirconia (ZrO₂)

Blue-violet faceted gemstone, likely amethyst

Quartz (SiO₂), purple variety colored mainly by iron impurities and irradiation

Diamond (likely rough or included fragment)

Diamond, crystalline carbon (C), cubic crystal system

Smoky Quartz

Silicon Dioxide (SiO2)

Tumbled white quartz pebble

Quartz (silicon dioxide, SiO₂), likely milky quartz or chalcedony

Polished blue chalcedony (likely seam agate)

Microcrystalline quartz, SiO₂; chalcedony with iron-oxide inclusions

Goldstone

Aventurine Glass (SiO2 + Cu small inclusions)

Botryoidal hematite (specular hematite)

Hematite, Fe₂O₃

Chalcanthite

Copper(II) sulfate pentahydrate (CuSO4·5H2O)

Blue Topaz

Topaz [Al2SiO4(F,OH)2]

Bismuth crystal

Bismuth (Bi), synthetic laboratory-grown crystal

Yellow faceted gemstone, likely citrine or synthetic glass

Citrine (quartz, SiO₂) is the leading natural possibility; visual identification is uncertain from the photograph

Blue topaz pendant

Topaz (Al₂SiO₄(F,OH)₂), likely treated blue topaz