Anthropogenic Specimen (Man Made)

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)

Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy

Man-made Glass (Tumbled/Shaped)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Asphalt Chunk

Asphalt concrete

Blue slag glass or dyed glass-like industrial material

Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass

Possible basaltic volcanic rock or iron-rich meteorite

Likely basalt (plagioclase–pyroxene rock); meteorite status cannot be confirmed visually

Tumbled black obsidian (likely)

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

Goldstone (brown goldstone)

Man-made aventurine glass, typically copper-bearing silica glass

Green sea glass (likely slag glass or bottle glass)

Man-made soda-lime silicate glass; not a naturally occurring mineral

Chert (Arrowhead/Projectile Point)

Microcrystalline quartz (SiO2)

Chert (Arrowhead)

Chert (SiO2)

Slag

Anthropogenic Iron Silicate Glass

Chert Arrowhead

Microcrystalline Quartz (SiO2)

Slag (Industrial Byproduct)

Anthropogenic Vitreous Silicate material

Sea Glass (Frosted Glass Fragment)

Amorphous Silica (Anthropogenic Sediment)

Leland Blue Stone

Anthropogenic Iron Smelting Slag

Clay Brick

Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)

Iron-rich slag or weathered ironstone fragments

Probably hematite–goethite material; possibly industrial iron slag (Fe₂O₃/FeO(OH))

Dyed Crackle Quartz

Silicon Dioxide (SiO2) with synthetic dye

Slag (Industrial Glass)

Anthropogenic Amorphous Vitreous Silicate

Goldstone (aventurine glass)

Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

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

Iron Slag

Anthropogenic Vitreous Ferrous Silicate

Green Slag Glass

Amorphous Silica Glass (Anthropogenic)

Goldstone (with Tiger's Eye and Quartz)

Aventurine glass (Synthetic SiO2 with Cu inclusions)

Diamond (in a jewelry setting)

Carbon (C)

Chert (Arrowhead Artifact)

Microcrystalline Quartz (SiO2)

Chert Arrowhead (Lithic Artifact)

Microcrystalline Quartz (SiO2)

Chert Arrowhead

Cryptocrystalline Quartz (SiO2)

Blue tumbled glass-like specimen; likely blue slag glass

Likely man-made glass (silicate glass), not a natural mineral; exact material cannot be confirmed from the image

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

Blue Impression Jasper beads

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

Chert (Arrowhead/Artifact Fragment)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Diamond

Carbon (C)

Chert (Arrowhead artifact)

Chert (Cryptocrystalline Silica, SiO2)

Note: Item is a Synthetic/Man-made Object

Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)

Man-made Synthetic Material (Not a rock or mineral)

Polyester (Polyethylene terephthalate) / Faux Fur

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Polished blue calcite sphere (tentative identification)

Calcite, CaCO₃; blue color generally results from trace impurities or inclusions

Corundum (Pink Sapphire / Ruby)

Al2O3 (Aluminum Oxide)

Milky quartz pebble

Quartz, silicon dioxide (SiO₂)