Mineral (Man Enhanced)

Rough Garnet in Matrix

Almandine Garnet (Fe3Al2Si3O12)

Bicolored tourmaline (likely watermelon-type elbaite)

Elbaite tourmaline, complex borosilicate: Na(Li,Al)3Al6(BO3)3Si6O18(O,OH)4

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Peacock Ore (Treated Chalcopyrite)

Copper Iron Sulfide (CuFeS2) coated with oxides

Dragon Vein Agate (Dyed)

SiO2

Aura Quartz Geode (Angel Aura Quartz)

Silicon Dioxide (SiO2) bonded with precious metals

Blue Lace Agate (Heat-treated/Crackle Quartz variety)

Silicon Dioxide (SiO2)

Blue halite (rock salt)

Halite (NaCl)

Iridescent quartz-bearing rock, likely bornite/chalcopyrite-bearing quartzite

Quartz (SiO₂) with probable chalcopyrite (CuFeS₂) and/or bornite (Cu₅FeS₄)

Tumbled turquoise

Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Green Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Blue apatite (likely dyed or enhanced)

Apatite group; fluorapatite, Ca5(PO4)3F, is the common blue variety

Tumbled agate (likely moss agate)

Microcrystalline quartz, SiO₂; chalcedony variety, possibly moss agate

Not a geological specimen

N/A (man-made object)

Native Silver

Silver (elemental Ag)

Chalcopyrite

CuFeS2 (Copper Iron Sulfide)

Carved orange coral (likely bamboo coral)

Calcareous coral, principally aragonite (CaCO₃); possibly dyed bamboo coral, Isididae

Dyed or treated agate bead strand (likely blue-green and brown banded agate)

Agate, a banded variety of microcrystalline quartz (SiO₂)

Granite or Granitic Gneiss River Rock

Granite

Smoky quartz crystal

Quartz, silicon dioxide (SiO₂), smoky variety

Opalite

Man-made opalized glass

Mystic Topaz (Treated Quartz or Topaz)

Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating

Asphalt Concrete

Bituminous conglomerate

Tumbled carnelian (likely agate/chalcedony)

Microcrystalline quartz, SiO₂; reddish color typically from iron oxides

Green Banded Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Blue Dyed Agate

Chalcedony (SiO2) with artificial pigment

Polished fossil gastropod shell

Fossilized gastropod (snail) shell; exact taxon cannot be determined from the image

Dyed Tumbled Quartz (Dragon's Vein Agate/Quartz)

Silicon Dioxide (SiO2) with artificial dye

Polished agate (likely moss or plume agate)

Microcrystalline quartz, primarily chalcedony (SiO₂), with possible iron-oxide inclusions

Polished banded agate (likely Botswana or fortification agate)

Microcrystalline quartz, SiO₂, chiefly chalcedony with iron-oxide inclusions

Polished pink banded agate

Banded chalcedony (microcrystalline quartz, SiO₂), likely dyed or naturally vivid pink

Purple diamond (rough gem-quality diamond)

Diamond, crystalline carbon (C)

Blue chalcedony or dyed agate (tentative)

Microcrystalline quartz, SiO₂; color may be enhanced by dye or coating

Bornite

Bornite (Cu5FeS4)

Likely raw chalcopyrite or bornite specimen

Chalcopyrite (CuFeS₂), possibly bornite (Cu₅FeS₄)

Blue-green faceted gemstone, possibly glass or synthetic material

Not identifiable from the image; possible synthetic spinel or glass

Asphalt (Road Aggregate)

Bituminous conglomerate

Polished druzy quartz specimen

Quartz (SiO₂), likely druzy quartz with possible blue chalcedony or inclusions

Tumbled banded agate (likely blue lace agate)

Microcrystalline quartz, SiO₂ (chalcedony variety)

Blue apatite or dyed blue stone (likely apatite)

Apatite, Ca5(PO4)3(F,Cl,OH); exact identification is uncertain from the photograph

Diamond (in a gold ring)

Diamond (pure carbon, C)

Peacock Ore (Bournite/Chalcopyrite)

Bornite (Cu5FeS4) or Acid-Treated Chalcopyrite (CuFeS2)