Mineral (Processed Metal)

Likely polished greenstone or serpentine inlay

Serpentine-group mineral, commonly antigorite/lizardite; possibly nephrite jade

Polished red jasper pendant

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Diamond (Cluster Ring)

Carbon (C)

Granite

Felsic intrusive igneous rock

Tumbled Hematite with Quartz/Chert (Specular Hematite)

Fe2O3 (Iron Oxide)

Celestine (Celestite)

Celestine (Strontium Sulfate, SrSO4)

Lepidolite

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

Quartzite Cobble

Quartzite (SiO2)

Likely iron meteorite fragment

Unclassified Fe–Ni meteorite; possible stony-iron fragment

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Granite

Felsic intrusive igneous rock

Faceted diamond gemstone (likely)

Diamond — crystalline carbon, C

Granite

Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase

Concrete

Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)

Chalcopyrite in Matrix

CuFeS2

Metal-rich sulfide ore, likely galena-bearing rock

Galena (PbS) with pyrite/chalcopyrite in a host rock; exact identification requires testing

Gold Nugget

Gold (Au)

Sulfide Ore (likely Galena and Sphalerite in Quartz)

Lead-Zinc Ore (PbS and ZnS)

Tumbled green fluorite

Fluorite (calcium fluoride, CaF₂)

Quartzite

Quartzite (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Pyrite

Iron Sulfide (FeS2)

Limonite (Ironstone)

Limonite (FeO(OH)·nH2O)

Gold-Bearing Quartz

Silicon Dioxide with Native Gold (SiO2 + Au)

Quartzite

Quartzite (SiO2)

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Gold coin pendant on a chain

Gold (Au), likely a coin set in a gold-colored metal mount

Granite

Felsic intrusive igneous rock

Granite

Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase

Turquoise bead bracelet

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O (bead material may be stabilized or dyed)

Tumbled carnelian agate

Microcrystalline quartz (chalcedony), SiO₂; iron-oxide colored

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

Black beaded bracelet, likely black onyx or glass

Possibly chalcedony (microcrystalline quartz, SiO₂); the beads may instead be man-made glass

Silver (Native Element)

Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen

Olivine

(Mg,Fe)2SiO4

Red cabochon gemstone ring; likely garnet

Possibly almandine garnet, Fe₃Al₂(SiO₄)₃; identification is uncertain from the image

Star sapphire ring

Corundum (Al₂O₃), likely asteriated sapphire

Tumbled carnelian (likely chalcedony)

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

Polished brecciated jasper pendant

Silica-rich jasper (microcrystalline quartz, SiO₂), brecciated and cemented by silica or iron-rich material

Small cylindrical mineral/stone fragment

Undetermined; the image is insufficient for reliable mineral identification

Basalt with Quartz Vein

Basalt (fine-grained mafic igneous rock) with crystalline Quartz (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within Metasedimentary or Igneous matrix