Man Made Material (Jewelry, Metal Alloy)

Sea Glass

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

Silicon

Crystalline Silicon (Si)

Goldstone (Red)

Aventurine Glass

Black Obsidian

Amorphous volcanic glass (SiO2 + impurities)

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)

Sunstone

Andesine-Labradorite Feldspar ((Ca,Na)(Al,Si)4O8)

Tumbled white chalcedony (likely milky quartz)

Chalcedony, microcrystalline quartz (SiO₂)

Possible iron meteorite fragment

Iron–nickel meteorite, likely kamacite–taenite alloy

Sea Glass (Turquoise/Aqua)

Amorphous Silica (SiO2) with transition metal dopants

Iron meteorite (probable)

Fe–Ni metallic meteorite, commonly kamacite–taenite

Vanadinite

Pb5(VO4)3Cl

Sea Glass

Amorphous Silicon Dioxide (Man-made glass weathered by nature)

Small clear crystal, possibly quartz or glass-like gemstone

Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia

Opalite

Synthetic Glass, SiO2 base with metallic inclusions

Yellow cabochon gemstone, likely citrine or yellow glass imitation

Quartz (SiO₂), if natural citrine; visual evidence is insufficient to exclude man-made glass or resin

Titanium Coated Aura Quartz (Apple Aura Quartz)

Silicon Dioxide (SiO2) with Metallic Vapor Deposition Coating

Red gemstone ring; likely synthetic ruby or red glass

Undetermined from the image; ruby is corundum (Al₂O₃), while red glass is amorphous silicate

Iron meteorite fragment (likely metallic meteorite)

Fe–Ni kamacite/taenite alloy; exact identification requires testing

Bismuth crystal aggregate

Bismuth (Bi), commonly laboratory-grown

Rock crystal (clear quartz), possibly cloudy quartz

Quartz, silicon dioxide (SiO₂)

Polished silver sheen obsidian heart

Obsidian (volcanic glass), primarily rhyolitic silica-rich glass

Red Slag Glass

Amorphous Silica (Industrial byproduct with metallic oxide dopants)

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Opalite

Synthetic Opalised Glass

Dyed Blue Agate (Dragon Vein Agate)

Silicon Dioxide (SiO2) with artificial cobalt/organic dyes

Blue goldstone beads

Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli

Concretion

Sedimentary Concretion (Ironstone / Calcite Concretion)

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Sandstone (with Liesegang rings or joints)

Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)

Sandstone Concretion

Sedimentary Clastic Rock (Silicate-rich)

Sandstone Concretion

Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)

Weathered iron-rich concretion or ironstone nodule

Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrated iron oxides)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Hematite

Iron(III) oxide (Fe2O3)

Iron-rich meteorite fragment (probable)

Unclassified meteoritic iron–nickel or stony-iron fragment

Man-made Ceramic / Clay Figurine

Aluminosilicate Ceramic (Processed Clay)

Green sea glass or tumbled green quartz (uncertain)

Likely quartz (SiO₂) if natural; alternatively man-made soda-lime glass

Likely iron meteorite (stony-iron or weathered iron-rich meteorite)

Provisional identification: meteoritic Fe–Ni alloy, mainly kamacite/taenite; exact classification requires chemical and petrographic testing

Copper-bearing rock, likely native copper in a matrix

Native copper (Cu), possibly with cuprite/malachite in a basaltic or porphyritic matrix

Green sea glass (likely bottle glass)

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

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)