Man Made Material (Jewelry, Metal Alloy)

Silver (Native Silver/Alloy Specimen)

Ag (Native Silver element), specifically a 90% Ag / 10% Cu alloy

Possible iron meteorite fragment

Iron meteorite, likely kamacite–taenite alloy

South Korean 100 Won Coin (Cupronickel)

Cupronickel Alloy (75% Cu, 25% Ni)

Strawberry Quartz

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Faceted pink gemstone beads (possibly tourmaline)

Unidentified pink gem material; appearance may be consistent with pink tourmaline (elbaite), but the image is insufficient for confirmation

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Pyrite

Iron Sulfide (FeS2)

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Likely metallic meteorite fragment

Undetermined; possibly an iron meteorite or stony-iron meteorite

Sea Glass (White/Clear)

Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO

Diamond

Carbon (C)

Sea Glass

Amorphous silicon dioxide (Man-made glass weathered by nature)

Goldstone (Brown/Gold variety)

Aventurine Glass (SiO2 with Copper inclusions)

Native copper-rich iron meteorite (likely Canyon Diablo/meteorite-like specimen)

Iron–nickel alloy, chiefly kamacite and taenite (Fe-Ni), with oxidized copper/iron sulfide inclusions

Iron-rich meteorite candidate

Undetermined; possible stony-iron or iron meteorite, commonly kamacite–taenite alloy

Sea Glass (Turquoise/Aqua)

Amorphous Silica (SiO2) with transition metal dopants

Opalite

Synthetic Opalite Glass (Silicon Dioxide)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Green Aura Quartz

Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)

Turquoise-colored bead on a metal earring

Unidentified blue-green bead; possibly turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O), but the image cannot confirm its material

Aura Quartz

Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)

Pink Tumbled Quartz (Dyed)

Silicon Dioxide (SiO2)

Sea Glass

Amorphous Silicon Dioxide (Man-made glass weathered by nature)

Small clear crystal, possibly quartz or glass-like gemstone

Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia

Diamond (Cluster Ring)

Carbon (C)

Likely iron meteorite or meteorite fragment

Unclassified meteoritic iron–nickel alloy, possibly an iron meteorite

Likely native copper

Native copper (Cu)

Opalite

Synthetic Opalized Glass

Yellow cabochon gemstone, likely citrine or yellow glass imitation

Quartz (SiO₂), if natural citrine; visual evidence is insufficient to exclude man-made glass or resin

Polished gemstone tower assortment

Primarily quartz varieties and simulants; apparent amethyst (SiO₂), rose quartz (SiO₂), clear quartz (SiO₂), fluorite (CaF₂), sodalite, malachite, and possibly dyed or composite stones

Ruby-set gold ring

Ruby (corundum), Al₂O₃ colored red by chromium; mounted in a gold alloy

Red cabochon gemstone ring

The stone may be carnelian (orange-red chalcedony, SiO₂); the image is insufficient to identify it reliably.

Copper

Native Copper (Cu)

Likely native silver

Native silver (Ag); identification is provisional from the photo

Sandstone Concretion

Siliciclastic Concretion

Sandstone Concretion

Clastic Sedimentary Concretion (SiO2 with Iron Oxide)

Native copper nugget

Copper (Cu), often with cuprite or copper-oxide surface

Goldstone (Red)

Aventurine Glass

Beaded mineral/crystal jewelry (likely turquoise and coral accents)

Variable; blue beads may be turquoise (CuAl6(PO4)4(OH)8·4H2O), with possible dyed howlite, glass, or composite materials

Red gemstone ring; likely synthetic ruby or red glass

Undetermined from the image; ruby is corundum (Al₂O₃), while red glass is amorphous silicate

Blue goldstone beads

Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli