Synthetic Or Natural Fiber

Diamond ring

Diamond, crystalline carbon (C), likely a faceted mounted stone

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Blue glass-like heart pendant, likely synthetic blue spinel or colored glass

Unconfirmed; possibly synthetic spinel (MgAl₂O₄) or cobalt-colored glass

Iridescent opal-like specimen

Likely common opal (hydrated amorphous silica, SiO₂·nH₂O), possibly treated or synthetic

Tiger’s-eye (likely rough chatoyant quartz)

Quartz, SiO₂, with fibrous pseudomorphic alteration of crocidolite (often called tiger’s-eye)

Sodium Polyacrylate (Superabsorbent Polymer)

Sodium Polyacrylate [-CH2-CH(COONa)-]n

Emerald

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

Ruby (Faceted)

Corundum (Al2O3 with Cr trace elements)

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Concrete Paver (Artificial Cementitious Rock)

Hydrated Portland Cement Aggregate

Blue gemstone, likely iolite or blue sapphire

Iolite (cordierite, Mg₂Al₄Si₅O₁₈) or corundum (sapphire, Al₂O₃)

Diamond (faceted)

Diamond (Pure Carbon, C)

Polished green-and-black banded cabochon (likely malachite imitation or dyed agate)

Uncertain; possible malachite (Cu₂CO₃(OH)₂), banded agate (SiO₂), or man-made glass

Star ruby cabochon ring

Corundum, Al₂O₃ (ruby variety), displaying asterism

Opalite glass sphere (likely synthetic imitation)

Man-made opalescent glass; not natural opal

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Peridot gemstone pendant

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

Hematite

Iron(III) oxide (Fe2O3)

Chipped Glass/Plastic Fragment

Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic

Strawberry Quartz

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

Blue glassy mineral specimen, possibly blue topaz or aquamarine

Tentatively topaz (Al₂SiO₄(F,OH)₂) or beryl/aquamarine (Be₃Al₂Si₆O₁₈); identification is limited by severe image blur

Yellow-orange faceted gemstone, likely citrine or yellow topaz

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

White cabochon gemstone, likely milky chalcedony or opalite

Chalcedony: microcrystalline quartz, SiO₂; appearance may also indicate synthetic opalite glass

Diamond

Native Carbon (C)

Faceted citrine-colored gemstone

Likely citrine (quartz, SiO₂); possibly yellow glass or synthetic gem

Goldstone (with Tiger's Eye and Quartz)

Aventurine glass (Synthetic SiO2 with Cu inclusions)

Polished greenstone (likely nephrite jade)

Nephrite, a fibrous aggregate of tremolite–actinolite amphibole: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂

Ruby

Corundum (Al2O3 with Chromium trace)

Tumbled amethyst

Amethyst, purple quartz (SiO₂)

Smoky Quartz

Silicon Dioxide (SiO2)

Pink amethyst or pale pink quartz gemstone

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

Faceted clear quartz (rock crystal), likely a cut imitation or low-grade gemstone

Quartz, silicon dioxide (SiO₂)

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby (Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Rough White Zircon

Zircon (Zirconium Silicate, ZrSiO4)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Goldstone

Aventurine glass

Diamond (Faceted)

Carbon (C)

Tumbled blue chalcedony (likely dyed)

Cryptocrystalline quartz, SiO₂; chalcedony variety

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

Blue cabochon gemstone ring

Likely blue turquoise, glass-filled sapphire, or blue spinel; exact identification requires testing