Sedimentary (Man Made Composite)

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)

Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)

Likely clear quartz crystal or glass-like gemstone

Quartz, silicon dioxide (SiO₂); exact identification is uncertain from the strongly magenta-lit image

Metallic sulfide mineral fragment, likely galena

Galena (lead sulfide, PbS), tentative identification

Basalt with Red Sandstone

Mafic extrusive igneous rock with quartzose sedimentary matrix

Vesicular basalt (weathered scoria)

Scoriaceous basalt; chiefly plagioclase, clinopyroxene, olivine, and iron-titanium oxides

Ocean Jasper Mushroom

Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)

Opalite

Synthetic Glass (SiO2 + impurities)

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

Silicon Carbide (Carborundum)

Silicon Carbide (SiC) / Moissanite (natural)

Blue Goldstone

Man-made glass with crystalline copper/cobalt inclusions

Turquoise-style beaded bracelet

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O; possibly dyed or composite beads

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Slag

Anthropogenic glassy silicate

Beads (likely glass or man-made material)

N/A (artificial material)

Fossilized coral with attached shell

Likely fossil coral (Scleractinia or Tabulata), with a bivalve or gastropod shell; exact identification requires microscopy

Bismuth Crystal

Bismuth (Bi)

Aura Rose Quartz

SiO2 (Silicon Dioxide with Titanium/Gold coating)

Colorless quartz crystal (likely quartz fragment)

Quartz, silicon dioxide (SiO₂)

Blue cabochon, likely dyed or synthetic material

Undetermined; possibly dyed chalcedony (SiO₂), glass, or synthetic corundum

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Aura Quartz (Titanium-coated Quartz)

Silicon Dioxide (SiO2) with metallic vapor coating

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Fossiliferous limestone with colonial coral

Calcite (CaCO₃) limestone containing fossil tabulate or rugose coral colonies

Tumbled milky quartz

Quartz, silicon dioxide (SiO₂)

Libyan Desert Glass

Tektite (high-silica impact glass), SiO2

Zinc Alloy (Silver-plated)

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

Opalite (Synthetic Moonstone/Sea Opal)

Silicon Dioxide (SiO2) glass with metallic inclusions

Rainbow Hematite (Man-made/Treated)

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

Obsidian

Volcanic Glass

White quartz pebble or chip

Quartz (silicon dioxide, SiO₂), possibly milky quartz

Tumbled white chalcedony (likely milky quartz)

Chalcedony, microcrystalline quartz (SiO₂)

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2

Goldstone (Brown)

Aventurine Glass (Silicon Dioxide infused with Copper crystals)

Green Quartz / Chrysoprase / Sea Glass

Silicon Dioxide (SiO2)

Slag Glass

Vitreous Silicate Residue

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Clear quartz fragment

Quartz (silicon dioxide, SiO₂)

Polished black pebble, likely basalt

Basalt, a fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine

Opalite

Synthetic Glass (Hydrated Silica Simulant)

Titanium Aura Quartz (Bismuth-coated Druzy)

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Opalite

Synthetic Opalised Glass

Opalite (a synthetic glass)

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