Man Made Material, Not A Natural Rock Or Mineral Specimen

Blue glassy tumbled stone, likely blue chalcedony or slag glass

Chalcedony (microcrystalline SiO₂), possibly man-made blue glass

Porous iron-rich rock or slag-like material

Unidentified; possibly limonite/goethite-rich ironstone

Cultured Marble (Synthetic)

Polymer-matrix composite (typically calcium carbonate in polyester resin)

Magnetic Hematite (Man-made)

Iron Oxide (Fe2O3) with Barium-Strontium Ferrite

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Polished obsidian

Volcanic glass; predominantly rhyolitic SiO₂

Opalite

Synthetic Glass (Simulated Opal)

Polished blue-green glassy slag or coated mineral fragment

Most likely man-made colored glass/slag; exact composition cannot be determined visually

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Sea Glass

Man-made silicate glass

Goldstone (Brown/Gold)

Aventurine Glass (Man-made glass with Copper inclusions)

Blue Crackle Quartz (Dyed Quarzite)

Silicon Dioxide (SiO2) with artificial dye

Aventurine Quartz

Silicon Dioxide (SiO2) with Fuchsite inclusions

Opalite

Synthetic Glass / Man-made Opal Simulant

Red-orange jasper pebble (tentative)

Microcrystalline quartz, SiO₂, colored mainly by iron oxides

Cullet (Slag Glass)

Amorphous Silica (Industrial byproduct)

Goldstone

Man-made glass infused with copper particles

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Opalite

Synthetic Opalised Glass

Sea Glass

Man-made vitreous material (silica-based glass)

Rainbow Hematite (Man-made/Treated)

Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Slag

Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)

Orange glassy slag (industrial by-product)

Iron-rich silicate glass; composition varies, commonly Fe–Ca–Al silicate

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Blue Impression Jasper beads

Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Dzi Bead (Etched Chalcedony)

Cryptocrystalline Quartz (SiO2) with chemical etching

Polished amethyst-bearing quartz

Quartz, SiO₂; purple coloration from irradiation and trace iron

Likely iron-rich slag or weathered ironstone

Hematite–goethite-rich material (Fe₂O₃/FeO(OH)); possibly industrial iron slag

Iridescent bismuth crystal

Bismuth (Bi), artificially crystallized and likely oxidized/coated

Diamond Druzy (Crystalline Diamond)

Carbon (C)

Gem-set gold ring

Gold alloy setting with a colorless faceted gemstone, possibly quartz or glass; the stone cannot be identified reliably from the image

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

Diamond

Carbon (C)

Sandstone (Water-worn Cobble)

Arenite (SiO2 with CaCO3 or Fe2O3 cement)

Blue chalcedony (likely dyed or treated)

Microcrystalline quartz, SiO₂ (chalcedony)

Polished white chalcedony or quartz pendant

Microcrystalline quartz (chalcedony), SiO₂; exact identification is uncertain from the image

Opalite

Synthetic Opalised Glass

Blue Goldstone

Auraventurine (Synthetic glass with cobalt and copper inclusions)

Fossilized gastropod (likely nerite or related sea snail)

Gastropoda; shell composed originally of aragonite/calcite, commonly replaced or infilled by calcite