Mineraloid Like Synthetic Material

Synthetic Convention Badge (Plastic/PVC)

Polyvinyl Chloride (PVC) / Polycarbonate

Limonite or Ironstone Nodule

FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Green faceted bead strand, likely dyed or synthetic material

Uncertain; possibly green-dyed quartz, glass, or lab-created emerald-like material

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

Obsidian

Amorphous volcanic glass (primarily SiO2)

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

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

White cabochon gemstone, likely milky chalcedony or opalite

Chalcedony: microcrystalline quartz, SiO₂; appearance may also indicate synthetic opalite glass

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Coal (Anthracite/Bituminous)

Carbo fossilium (primarily Carbon)

Limonite (Iron Ore)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Obsidian

Volcanic Glass (Amorphous SiO2)

Diamond

Native Carbon (C)

Zircon

Zirconium Silicate (ZrSiO₄)

Amber cabochon ring (likely amber)

Amber — fossilized plant resin; organic mineraloid, not a crystalline mineral

Opalite-style glass pendant

Man-made opalescent glass (not natural opal)

Obsidian

Volcanic Glass (SiO2 rich)

Obsidian

Volcanic Glass

Rough White Zircon

Zircon (Zirconium Silicate, ZrSiO4)

Green faceted or cabochon gemstone (possibly glass or synthetic)

Undetermined; possibilities include green beryl (Be₃Al₂Si₆O₁₈), quartz (SiO₂), or synthetic glass

Faceted glass-like gemstone object

Likely synthetic glass or cubic zirconia; exact material cannot be confirmed from the image

Synthetic Wolf Plush (Non-mineral)

Canis lupus similis (Prop material: Polyester & Synthetic fibers)

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Shungite

Shungite (carbon-rich Precambrian mineraloid)

Labradorite cabochon

Labradorite, a calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

Opalite (a synthetic glass)

Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant

Goldstone (with Tiger's Eye and Quartz)

Aventurine glass (Synthetic SiO2 with Cu inclusions)

Green Opal

Hydrated Silica (SiO2·nH2O)

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

Tumbled turquoise-like stone

Likely turquoise, hydrated copper aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Goldstone

Avventurina (Man-made Glass with Copper inclusions)

Black Obsidian

Obsidian (Volcanic Glass, SiO2+)

Sandstone (likely Fossilized Wood or Concrete Simulacrum)

Arenite / Silicified Wood / Anthropogenic Concrete

Gemstone rings (stones not reliably identifiable)

The pale stone may be quartz or another translucent gem; the red stone may be ruby, garnet, or synthetic corundum. Image detail is insufficient for identification.

Clear faceted gemstone in an ornate metal bracelet

Unidentified transparent faceted stone; possibilities include quartz (SiO₂), zircon (ZrSiO₄), or glass—image alone cannot distinguish them

Opalite (Synthetic Opalized Glass)

Synthetic Silicon Dioxide (SiO2) glass

Tumbled amber

Amber (fossilized plant resin), commonly succinite; organic mineraloid

Tumbled green beryl or glassy green gemstone

Likely beryl, Be₃Al₂Si₆O₁₈; possibly treated emerald or synthetic glass

Gold-colored gemstone ring, likely citrine or glass imitation

Indeterminate from image; possible quartz (SiO₂) or yellow glass set in gold-colored metal