Mineral (Man Enhanced)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Blue Topaz

Aluminum silicate fluoride hydroxide, Al2SiO4(F,OH)2

Aura Quartz Bead

Silicon dioxide (SiO2) with metal coating

Polished agate slice

Agate, a banded variety of chalcedony (microcrystalline SiO₂)

Tumbled banded blue agate

Chalcedony (microcrystalline quartz, SiO₂), variety agate

Polished agate beads

Agate, a banded variety of chalcedony (microcrystalline quartz, SiO₂)

Purpurite

Purpurite (MnPO4)

Tumbled carnelian (likely)

Carnelian, orange-red variety of cryptocrystalline silica (SiO₂), chalcedony

Blue Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Polished blue chalcedony (possibly agate)

Microcrystalline quartz, SiO₂; chalcedony, potentially banded agate

Orange chalcedony or tumbled carnelian fragment

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/carnelian

Tumbled purple chalcedony or low-grade amethyst bead bracelet

Chalcedony (microcrystalline SiO₂), possibly quartz/amethyst; composition is SiO₂

Tumbled agate/chalcedony

Microcrystalline quartz (SiO₂), likely mossy or dendritic agate

Druzy agate/geode (likely seam agate with quartz)

Microcrystalline quartz (chalcedony), SiO₂, with crystalline quartz druse and iron-oxide matrix

Blue Chalcedony (Agate)

Silicon Dioxide (SiO2)

Tiger's Eye

Silicon dioxide (SiO2) with inclusions of Limonite

Banded agate tower (likely onyx/chalcedony)

Microcrystalline quartz, SiO₂; commonly called banded agate or black-and-white onyx

Pink halite (rock salt)

Halite (sodium chloride, NaCl)

Pale green beryl (likely aquamarine)

Beryl, Be₃Al₂Si₆O₁₈; blue-green varieties are aquamarine

Polished banded agate slab

Agate, microcrystalline quartz (SiO₂), commonly with chalcedony and minor quartz, iron oxides, and other trace minerals

Likely polished fluorite or blue calcite specimen

Fluorite (CaF₂) or calcite (CaCO₃); exact identification is uncertain under blue lighting

Tumbled blue chalcedony (likely agate or common opal)

Microcrystalline quartz, SiO₂; possibly hydrated silica opal, SiO₂·nH₂O

Tumbled blue-gray chalcedony (likely blue quartz or agate)

Microcrystalline quartz, SiO₂; likely chalcedony, possibly dyed

Jasper / Agate / Chalcedony

Cryptocrystalline quartz (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2)

Black Onyx

Silicon Dioxide (SiO2)

Yellow chalcedony (likely tumbled quartz)

Chalcedony, cryptocrystalline SiO₂; possibly iron-stained quartz or yellow jasper

Mixed Mineral Bead Bracelet

Polycrystalline and Monocrystalline Silicates/Oxides (Quartz, Howlite, Hematite)

Polished agate pebble (likely dyed or naturally banded chalcedony)

Chalcedony, microcrystalline SiO₂; agate is banded chalcedony

Aura Quartz (Titanium/Bismuth Coated)

Silicon Dioxide (SiO2) with metallic vapor coating

Green Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating

One Pound Coin (UK)

Nickel-Brass Alloy (Cu-Zn-Ni)

Tumbled blue fluorite (likely)

Fluorite, calcium fluoride (CaF₂)

Metal Alloy (Jewelry)

Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.

Purple Chalcedony (likely dyed Agate)

Silicon Dioxide (SiO2)

Blue-gray chalcedony geode with druzy quartz

Microcrystalline quartz (SiO₂), with quartz druse; possibly agate/chalcedony

Polished blue agate geode slice

Chalcedony (microcrystalline quartz), SiO₂, with possible quartz/drusy lining and iron-oxide coloration

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2)

Dyed and polished agate geode slice

Banded chalcedony, SiO₂, with a quartz-lined cavity

Tumbled amber-colored chalcedony (likely carnelian)

Quartz, microcrystalline SiO₂; orange variety commonly called carnelian

Blue topaz-style pendant (stone identity uncertain)

Possibly blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm whether the stone is natural or synthetic