Metal (Elemental Mineral)

Quartz-bearing Ore (likely Gold-bearing Quartz)

Quartz (SiO2) with potential sulfide mineralization (Pyrite/Arsenopyrite)

Gold Nugget

Native Gold (Au)

Bismuth Crystal

Bismuth (Bi)

Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Bauxite

Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))

Cabochon gemstone ring, likely smoky quartz or tourmaline

Unconfirmed quartz (SiO₂) or brown tourmaline (dravite); visual identification is inconclusive

Small metallic mineral fragment

Unidentified metallic sulfide or native-metal fragment

Mixed gemstone jewelry collection

Likely amethyst, rose quartz or pink tourmaline, smoky quartz, and dark tourmaline/onyx; exact identifications are uncertain from the image

Faceted orange gemstone stud (possibly citrine)

Unconfirmed; possibly quartz (SiO₂), variety citrine

Biotite-bearing metamorphic rock, likely gneiss or schist

Mica-rich quartz–feldspar gneiss/schist; exact identification requires testing

Quartz and Limestone Grouping

Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)

Pallasite Meteorite

Pallasite (Stony-iron meteorite; Fe-Ni alloy with (Mg,Fe)2SiO4 olivine)

Iron-stained quartz vein in altered host rock

Quartz (SiO₂) with iron oxides/hydroxides, likely hematite and goethite; host rock uncertain from the image

Quartz Vein

Silicon Dioxide (SiO2)

Gold Nugget

Native Gold (Au)

Likely silver-gray metallic ore fragment

Unidentified metallic mineral; possibly galena (PbS), but the image is insufficient for a confident identification

Quartz Vein in Basalt or Mafic Rock

Silicon Dioxide (SiO2) vein in volcanic/mafic matrix

Slag (Industrial Glassy Byproduct)

Ferro-silicate Slag

Native Silver Nugget

Silver (Ag)

Bismuth Crystal

Bismuth (Bi)

Ironstone Pebble

Sedimentary ironstone / Hematitic Sandstone

Lepidolite

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

Lepidolite

K(Li,Al)3(Al,Si,4)10(O,F,OH)2

Metallic sulfide-bearing rock, likely galena-rich ore

Galena (lead sulfide, PbS), possibly mixed with pyrite/chalcopyrite and host rock

Limonite (Ochreous)

FeO(OH)·nH2O (Hydrated Iron Oxide)

Chalcopyrite in Quartz (Gold-bearing Ore)

CuFeS2 (Chalcopyrite)

Manganese Nodule

Polymetallic Nodule (Hydrous manganese and iron oxides)

Aura Quartz (Titanium/Gold coated)

Silicon Dioxide (SiO2) with metallic vapor deposition

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Vanadinite

Pb5(VO4)3Cl

Granite

Intrusive Igneous Rock

Rose Quartz

Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron

Granite

Plutonic Igneous Rock

Pyrite with Quartz

Iron Sulfide (FeS2) with Silicon Dioxide (SiO2)

Quartz vein in Schist

Crystalline Silicon Dioxide (SiO2) in Metamorphic Host

Gold Nuggest

Native Gold (Au)

Milky Quartz with Mica Matrix

SiO2 (Silicon Dioxide) with Muscovite/Biotite mica

Granite

Intrusive Igneous Rock

Quartz Vein in Basalt or Sedimentary Host Rock

Silica-veined lithic fragment (SiO2 in host matrix)

Turquoise-colored bead on a metal earring

Unidentified blue-green bead; possibly turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O), but the image cannot confirm its material

Red garnet cabochon pendant

Likely almandine garnet, iron-rich garnet-group silicate (often approximated as Fe₃Al₂(SiO₄)₃); identification from the image is uncertain.

Red jasper (likely polished and carved)

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