Man Made Material (Jewelry, Metal Alloy)

Blue glassy mineral specimen, possibly dyed or synthetic

Uncertain; possible blue fluorite (CaF₂), dyed chalcedony, or man-made glass

Opalite

Synthetic Opalite Glass

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Dyed Crackle Quartz (Green)

Quenching-treated Quartz (Silicon Dioxide, SiO2)

Milky quartz (likely)

Quartz, silicon dioxide (SiO₂)

Pearl-embellished decorative cross

Pearl (biogenic calcium carbonate, predominantly aragonite) with rhinestone-mounted glass or synthetic gemstones

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Banded agate pendant (likely carnelian or brown-and-white chalcedony agate)

Agate, a banded variety of chalcedony; microcrystalline quartz, SiO₂, with iron-oxide coloration

Sea Glass

Man-made silicate glass (Amorphous silicon dioxide)

Polished black stone, likely obsidian

Obsidian (volcanic glass; mostly silica-rich rhyolitic composition)

Polished milky quartz (likely quartz worry stone or wand)

Quartz, silicon dioxide (SiO₂)

Aventurine Quartz

Silicon Dioxide (SiO2) with Fuchsite inclusions

Mystic Topaz

Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating

Carved Mottled Greenish-Yellow Crystal/Glass Object

Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Iron meteorite (likely)

Fe–Ni metallic meteorite, commonly kamacite–taenite

Likely iron meteorite fragment

Fe–Ni metallic meteorite, possibly an octahedrite (kamacite–taenite alloy)

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)

Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)

Blue Celestite

Celestine (Strontium Sulfate, SrSO4)

Celestine (Celestite)

Strontium sulfate (SrSO4)

Tumbled clear quartz (rock crystal)

Quartz, silicon dioxide (SiO₂)

Green glassy mineral fragment, possibly fluorite

Fluorite (calcium fluoride, CaF₂), tentative identification

Blue Cracked Quartz (Dyed Fire Crackle Quartz)

Silicon Dioxide (SiO2) with synthetic dye

Copper ore-bearing rock (likely malachite/chrysocolla in a sulfide-rich matrix)

Cuprite–malachite/chrysocolla mineralization; probable copper sulfides such as chalcopyrite in altered host rock

Native Copper

Native Copper (Cu)

Opalite

Synthetic Opalised Glass

Pink Quartz / Sea Glass

Silicon Dioxide (SiO2)

Colorless quartz crystal (likely quartz fragment)

Quartz, silicon dioxide (SiO₂)

Green Aura Quartz (Titanium treated Kyanite or Quartz)

Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating

Red glassy cabochon, likely synthetic ruby or red glass

Uncertain; possible synthetic corundum (Al₂O₃, chromium-colored) or man-made glass

Small rounded mineral pebble, possibly quartz

Uncertain; likely microcrystalline or crystalline SiO₂ (quartz), potentially with iron-oxide staining

Concretion with Geode Cavity

Ferruginous Sandstone Concretion with Quartz Center

Opalite

Synthetic Glass (Simulated Moonstone/Opal)

Tumbled opalite (likely man-made glass)

Opalite, a trade name for opalescent glass; not natural opal

Copper Nugget

Native Copper (Cu)

Clear quartz crystal (likely)

Quartz, silicon dioxide (SiO₂)

Bismuth crystal

Bismuth (Bi), commonly laboratory-grown

Lapis lazuli bead bracelet

Lapis lazuli, chiefly lazurite (Na₃Ca(Si₃Al₃)O₁₂S); commonly with calcite and pyrite

Clear quartz tumbled stone

Quartz (silicon dioxide, SiO₂)

Glass / Silicon Dioxide (Man-made)

SiO2 (Amorphous Silicon Dioxide)

Obsidian (Blue)

Volcanic Glass (SiO2)