Man Made Material (Metal)

Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Gold (Elemental Metal)

Gold (Au)

Inlaid stone ring (likely jasper or agate)

Likely microcrystalline quartz (chalcedony, SiO₂), possibly jasper, with decorative mineral inlays

Tumbled milky quartz

Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)

Ironstone Concretion (Pot Stone)

Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)

Engineerged Quartz (Quartz Composite)

SiO2 (Silicon Dioxide) in a polymer resin matrix

Acrylic or Resin (Synthetic Imitation)

Polymethyl Methacrylate (PMMA) or Polyepoxide

Chakra Stone Tower (Composite Multi-Mineral)

Crystalline Silicon Dioxide composite (SiO2) with various inclusions

Malaysian 50 Sen Coin

Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)

Diamond-set gold ring or ring component

Diamond (crystalline carbon, C); gold alloy setting (Au)

Pearls (likely freshwater cultured pearls)

Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin

Dyed Imperial Jasper (Sea Sediment Jasper)

Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony

Green agate/chalcedony bead necklace

Microcrystalline quartz (SiO₂), likely green chalcedony or dyed green agate

Diamond ring

Diamond, crystalline carbon (C), set in a gold-colored metal ring

Silicon Carbide (Carborundum)

Silicon Carbide (SiC) / Moissanite (natural)

Titanium-Coated Hematite (Aura Hematite)

Titanium-bonded Hematite (Fe2O3 with a Ti coating)

Diamond (as set in a metal alloy ring)

Diamond (Pure Carbon, C)

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Dyed or synthetic turquoise-blue glass-like specimen

Likely man-made colored glass or resin; exact identification requires testing

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)

Diamond (in a jewelry setting)

Carbon (C)

Blue-green gemstone ring, likely treated turquoise or synthetic/treated beryl

Indeterminate from image; possibilities include turquoise (CuAl6(PO4)4(OH)8·4H2O), apatite, or treated beryl

Bismuth Crystal

Bismuth (Bi)

Man-made Carved Stone (Scream Mask/Skull motif)

Carved Soapstone or Serpentine-rich rock

Sandstone Concretion

Siliciclastic Concretion

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Aura Quartz (Titanium-coated Quartz)

Silicon Dioxide (SiO2) with metallic vapor coating

Sandstone Concretion

Clastic Sedimentary Concretion (SiO2 with Iron Oxide)

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Crackle Agate / Dyed Quartz

SiO2 (Silicon Dioxide)

Possible sea glass (naturally frosted glass), not a confirmed geological specimen

Man-made silicate glass; composition varies, commonly soda-lime glass

Libyan Desert Glass

Tektite (high-silica impact glass), SiO2

Mixed gemstone bead bracelet

Likely rose quartz, amethyst, and possibly rhodonite or lepidolite beads

Chakra Stone (Composite / Man-made Bonded Gemstones)

Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)

Goldstone (likely red/brown aventurine glass)

Man-made aventurine glass; copper-bearing silicate glass (not a natural mineral)

Banded agate pendant (likely carnelian or brown-and-white chalcedony agate)

Agate, a banded variety of chalcedony; microcrystalline quartz, SiO₂, with iron-oxide coloration

Diamond-set gold ring (stone identity uncertain)

Possible diamond (crystalline carbon, C); metal setting appears gold-colored

Goldstone

Avventurina (Cu + SiO2 glass)

Rock crystal (clear quartz), possibly cloudy quartz

Quartz, silicon dioxide (SiO₂)