Man Made Material (Jewelry, Metal Alloy)

Emerald

Beryl (Be₃Al₂Si₆O₁₈), specifically the green variety colored by trace amounts of chromium or vanadium.

Red coral (likely precious coral)

Corallium sp.; calcium-carbonate skeleton, primarily calcite

Carnelian ring

Carnelian, a red-orange variety of chalcedony (microcrystalline quartz, SiO₂)

Pink/red faceted gemstone, likely synthetic ruby or pink sapphire

Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material

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.

Colorless faceted gemstone, likely glass or cubic zirconia

Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant

Chert

Chert (SiO2)

Metallic iron meteorite (probable)

Iron–nickel alloy, chiefly kamacite and taenite (Fe-Ni)

Iron-rich meteorite candidate

Possibly an iron meteorite or stony-iron meteorite; unverified Fe–Ni alloy

Polished carnelian cabochon

Carnelian, a red-orange chalcedony (microcrystalline quartz), SiO₂

Chert (Yellow Jasper/Flint)

Silicon Dioxide (SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)

Carved translucent jade pendant

Likely nephrite jade (actinolite–tremolite series); possibly jadeite or chalcedony, identification requires testing

Peach Moonstone

Potassium Aluminum Silicate (KAlSi3O8); variety of Orthoclase Feldspar

Polished unakite pendant

Unakite: quartz + epidote + pink potassium feldspar

Cut diamond tennis-chain jewelry

Diamond, crystalline carbon (C), cubic crystal system

Jade Ring

Nephrite or Jadeite

Tiger Shark Fossil Tooth

Galeocerdo cuvier (fossilized)

Tumbled cream-colored pebble

Likely quartz-rich sandstone or limestone; exact identification requires testing

Note on Image Identification: Textile

N/A (Anthropogenic material)

Onyx (Black) and Mother of Pearl Inlay

Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl

Cobalt Blue Slag Glass

Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives

Turquoise inlay or stabilized turquoise jewelry fragment

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Tumbled chalcedony (likely moss or dendritic agate)

Microcrystalline quartz, SiO₂, with iron-oxide inclusions

Likely polished dark gemstone cabochon

Indeterminate; possibly black chalcedony/agate, obsidian, or glass imitation

Yellow Beryl

Beryl (Be3Al2(SiO3)6)

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

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

Radiating stibnite crystals

Stibnite (antimony sulfide, Sb₂S₃)

Blue chalcedony cabochon (probable)

Chalcedony, a cryptocrystalline variety of quartz; silicon dioxide, SiO₂

Asphalt aggregate (crushed stone in bitumen)

Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen

Goldstone

Not a natural mineral or rock. It is an ornamental glass.

Amethyst cabochon ring

Amethyst, purple quartz (SiO₂), colored primarily by iron-related defects and irradiation

Chert (Chalcedony/Agate variety)

Silicon Dioxide (SiO2)

Black spinel bead bracelet

Spinel (magnesium aluminate), MgAl₂O₄

Polished dark gray stone, likely basalt or andesite

Fine-grained mafic volcanic rock, commonly basalt (plagioclase ± pyroxene, olivine, and iron oxides)

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

Milky chalcedony cabochon ring

Chalcedony, microcrystalline quartz (SiO₂), likely white or pale agate variety

Meteorite

Chondrite / Iron-Nickel Meteorite fragment

Carved pale green jade-like pendant

Likely nephrite jade (tremolite–actinolite amphibole); possibly serpentine or treated aventurine

Diamond

Native Carbon (C)

Likely weathered metallic mineral or slag fragment

Indeterminate; possibly iron-rich sulfide/oxide material or industrial slag

Blue-stone ring, likely set with blue glass or a dark-blue gemstone

The stone cannot be identified reliably from the image; possible sapphire (corundum, Al₂O₃), lapis lazuli, or glass