Man Made Mineral Simulant (Glass)

Blue glassy tumbled stone, likely blue chalcedony or slag glass

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

Quartz crystal (likely clear quartz)

Quartz, silicon dioxide (SiO₂)

Concrete with Aggregate

Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)

Polished dendritic agate or jasper

Microcrystalline quartz (SiO₂), likely chalcedony with iron/manganese dendrites

Opalite

Synthetic Opalized Glass

Green glassy mineral fragment, possibly fluorite

Fluorite (calcium fluoride, CaF₂), tentative identification

Aura Quartz

Titanium or Gold bonded Silicon Dioxide (SiO2)

Blue-dyed tumbled quartz or glass imitation

Quartz (SiO₂), appearance possibly enhanced with blue dye; identity uncertain from image

Small pebble, likely limestone

Unidentified carbonate pebble, possibly micritic limestone (calcite, CaCO₃)

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Blue Goldstone

Goldstone (artificial glass)

Goldstone

Aventurine glass (Synthetic glass with copper inclusions)

Polished black pebble, likely basalt

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

Raw quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or included quartz

Aura Quartz (specifically Titanium Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)

Purple glassy pebble, possibly slag glass

Unidentified; likely man-made glass rather than a natural mineral

Concretion (Sandstone)

Carbonate-cemented Sandstone Concretion

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Slag Glass

SiO2 (Silicon Dioxide) with impurities

Felsic Drill Core (likely Gneiss or Granite)

Felsic Metamorphic Rock (Gneissic profile)

Blue cabochon, likely dyed or synthetic material

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

Man-made Crystal (Lead Glass)

Lead oxide-doped Silica Glass (approx. SiO2 + PbO)

Agate and millefiori glass jewelry

Agate: microcrystalline quartz (SiO₂); millefiori element appears to be man-made glass

Concrete Fragment

Artificial Conglomerate (Cement and Aggregate)

Cubic Zirconia (Jewelry Setting)

Zirconium Dioxide (ZrO2)

Colorless faceted gemstone, likely glass or cubic zirconia

Probably cubic zirconia (zirconium dioxide, ZrO₂); diamond cannot be confirmed visually

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Polished brown jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Slag (Industrial Byproduct)

Artificial silicate/iron byproduct

Polished black pebble, possibly obsidian

Volcanic glass (obsidian), likely; identification is tentative from the image

Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)

Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)

Concrete

Anthropogenic Conglomerate

Polished black stone, likely black obsidian

Volcanic glass; predominantly rhyolitic silica glass (SiO₂-rich)

Iron Slag (Industrial Byproduct)

Anthropogenic Vitrification Product/Ferrous Slag

Goldstone (Red)

Aventurine Glass (SiO2 + Cu)

Ferrochrome Slag

Anthropogenic slag (Fe-Cr alloy waste)

Unidentifiable Rock Fragment

Iron-rich slag or ironstone; appearance is not diagnostic

Likely iron-oxide-rich material (hematite, Fe₂O₃, and/or magnetite, Fe₃O₄); possibly smelting slag

Rainbow Hematite Ring

Iron(III) oxide (Fe2O3) with thin-film coating

Goldstone (Brown/Gold variety)

Aventurine Glass (SiO2 with Copper inclusions)

Asphalt Concrete

Bituminous Concrete (Anthropic Rock)

Concrete with Aggregate

Artificial Conglomerate (Cement and Aggregate)