Metal

Slag

Gemstone Ring

N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ

Pallasite Meteorite

Pallasite (ST-class)

Clear faceted gemstone in a gold-colored setting

Likely colorless quartz (rock crystal) or synthetic cubic zirconia; visual identification is inconclusive

Copper

Native Copper (Cu)

Metal Chain Belt with Square Plates

Not applicable (man-made)

Nugget of Native Silver

Native Silver (Ag)

Black onyx bead necklace

Black chalcedony, a microcrystalline quartz variety (SiO₂); beads may be dyed or treated

Small stud earring with a purple gemstone (possibly amethyst)

Possible amethyst, a purple variety of quartz (SiO₂); identification is uncertain from the image

Iron-rich meteorite candidate (weathered iron meteorite)

Likely Fe–Ni metal, commonly kamacite and taenite; definitive identification requires laboratory testing

Aura Quartz (Cranberry or Magenta Aura Quartz)

Silicon dioxide coated with titanium/niobium (SiO2)

Ring with an Orange Inlay

N/A (Man-made object)

Red gemstone ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), chromium-colored; the image alone cannot confirm whether it is natural or synthetic

Cut diamond tennis-chain jewelry

Diamond, crystalline carbon (C), cubic crystal system

Iron meteorite fragment

Fe-Ni meteorite, likely an iron meteorite or stony-iron fragment

Gold (10K Alloy)

Aurum (Au) with alloying metals (Cu, Ag, Zn)

Quartz Vein in Host Rock

Silicon dioxide (SiO2) veins in metamorphic/igneous host rock

Native copper nugget

Copper (Cu), commonly with cuprite and copper-oxide alteration

Red faceted gemstone ring

Likely synthetic ruby or red spinel; exact identification requires testing

Slag (Industrial)

N/A (Anthropogenic Slag)

Ferruginous Sandstone (Gozzan)

Iron-rich clastic sedimentary rock with Limonite/Goethite

Aura Quartz (Anomalously Coated Quartz)

Silicon Dioxide (SiO2) treated with vaporized metals

Likely small metallic meteorite fragments

Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image

Slag

Anthropogenic Vitreous Silicate / Ferro-silicate Slag

Slag

Anthropogenic Vitrification Product / Silicate Slag

Aluminum Slag

Anthropogenic Aluminum (Al)

Iron Slag

Anthropogenic Vitreous Ferrous Silicate

Opal stud earrings

Opal, hydrated amorphous silica (SiO₂·nH₂O)

Gemstone-set ring, likely cubic zirconia or diamond

Likely synthetic cubic zirconia (zirconium dioxide, ZrO₂); stones may alternatively be diamond (carbon, C)

Zinc Alloy (Silver-plated)

Zinc Alloy Casting (Zn-Al-Mg-Cu)

Native Copper

Native Copper (Cu)

Bismuth Crystal

Bismuth (Bi)

Iron-rich meteorite fragment (probable)

Unclassified meteoritic iron–nickel or stony-iron fragment

Bismuth

Native Bismuth (Bi)

Aluminum Slag

Anthropogenic Aluminum (Al)

Blue slag glass / industrial smelter slag

Man-made iron-rich silicate slag; composition variable, commonly Fe–Ca–Mg–Al silicates with glassy phases

Likely green aventurine or nephrite jade ring

Aventurine quartz (SiO₂) or nephrite, a variety of tremolite–actinolite amphibole

Faceted brown gemstone pendant, likely smoky quartz or champagne topaz

Probably quartz (SiO₂), smoky variety; alternatively topaz (Al₂SiO₄(F,OH)₂)

Yellow Beryl

Beryl (Be3Al2(SiO3)6)

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

Likely iron meteorite

Iron–nickel meteorite, commonly octahedrite (kamacite–taenite)

Iron-rich meteorite fragment (probable stony-iron or iron meteorite)

Unclassified Fe–Ni meteorite; possible weathered iron meteorite