Anthropogenic Specimen (Man Made)

Bouncy Ball (Synthetic Rubber Polymer)

Polybutadiene / Ethylene Vinyl Acetate (EVA)

Carborundum (Silicon Carbide)

Silicon Carbide (SiC)

Cubic Zirconia (Jewelry Setting)

Zirconium Dioxide (ZrO2)

Diamond

Native Carbon (C)

Opalite

Synthetic Glass (Simulated Opal)

Opalite

Synthetic Glass (Simulated Opal)

Blue opal heart cabochon

Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite

Metal Alloy (Likely Pewter or Sterling Silver)

Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).

Fluorite (Polished Point/Tower)

Calcium Fluoride (CaF2)

Red-orange jasper pebble (tentative)

Microcrystalline quartz, SiO₂, colored mainly by iron oxides

Chert / Flint Handaxe

Cryptocrystalline Quartz (SiO2)

Blue-green cabochon, likely chalcedony or treated glass imitation

Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image

Aura Quartz (specifically Titanium Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)

Beads (likely glass or man-made material)

N/A (artificial material)

Polished black stone, likely black obsidian

Obsidian (volcanic glass), chiefly silica-rich rhyolitic composition

Green sea glass (likely bottle glass)

Man-made soda-lime silicate glass; not a natural mineral

Blue glassy tumbled stone, likely blue chalcedony or slag glass

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

Chert Concretion (with typical hematite/limonite staining)

Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)

Opalite

Synthetic Opalized Glass

Opalite

Synthetic Glass (Amorphized Silicon Dioxide)

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) with polymer resins

Vesicular basalt (weathered scoria)

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

Man-made Crystal (Lead Glass)

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

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Chert (Chalky Flint Node)

Chert (Microcrystalline Quartz, SiO2)

Green obsidian (likely molded or heat-treated glass-like specimen)

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

Opalite Egg

Synthetic Glass (Simulated Opal)

Polymer Clay (Mock Mineral)

Polyvinyl chloride (PVC) with plasticizers and pigment

Concrete with Aggregate

Artificial Conglomerate (Cement and Aggregate)

Opalite

Opalescent Glass (SiO2 + coloring agents)

Milky quartz (likely)

Quartz, silicon dioxide (SiO₂)

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

Purple glassy pebble, possibly slag glass

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

Conglomerate

Conglomerate (clastic sedimentary rock)

White pebble, likely quartz or calcite

Indeterminate from image; possible microcrystalline quartz (SiO₂) or calcite (CaCO₃)

Sea Glass

Amorphous silicon dioxide (man-made glass weathered by nature)

Red glassy gemstone, possibly garnet

Unidentified red transparent material; garnet group (X₃Y₂(SiO₄)₃) is a possibility

Blue Goldstone

Synthetic glass with cobalt and copper inclusions

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Dzi Bead (Etched Chalcedony)

Cryptocrystalline Quartz (SiO2) with chemical etching

Dragon's Breath (Mexican Opal Glass)

Artisan Foil Glass (SiO2 based)

Likely clear quartz crystal or glass-like gemstone

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