Metal (Elemental Mineral)

Iron-stained quartz rock

Quartz (SiO₂), likely ferruginous quartz or quartz-rich breccia

Milky Quartz

Quartz (Silicon Dioxide) - SiO2

Milky Quartz

Silicon Dioxide (SiO2)

Tumbled turquoise-colored stone pendant

Undetermined; possibly dyed howlite or magnesite, or turquoise

Iron-stained quartz-bearing rock (likely gold-bearing quartz vein fragment)

Quartz (SiO₂) with iron oxides/hydroxides, possibly limonite/goethite and minor sulfides

Small metallic mineral specimen, possibly pyrite

Pyrite (FeS₂), tentative identification

Serpentinite

Serpentinite (complex silicate mineral group (Mg,Fe)3Si2O5(OH)4)

Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)

Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Dalmatian Stone

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock)

Opalite

Opalescent Glass (SiO2 + coloring agents)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Gold

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold-bearing sulfide ore (tentative)

Native gold, likely with pyrite/chalcopyrite in quartz or altered rock

Milky Quartz

Silicon Dioxide (SiO2)

Rough Aquamarine

Beryl (Be₃Al₂Si₆O‑₁₈)

Lepidolite Polished Point

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

Milky Quartz

Silicon Dioxide (SiO2)

Quartz-rich breccia or quartz vein fragment

Silica, primarily quartz (SiO₂), with possible chlorite, feldspar, or iron-oxide inclusions

Decorated turquoise-like bead or mineral pendant

Likely turquoise [CuAl₆(PO₄)₄(OH)₈·4H₂O], possibly dyed composite or blue-green jasper

Polished brecciated jasper pendant

Jasper, an opaque microcrystalline variety of chalcedony (mostly SiO₂), with iron-oxide staining and likely brecciation

Weathered biotite-rich schist

Mica schist, chiefly quartz + biotite/muscovite; possibly garnet-bearing

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Turquoise cabochon ring

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Quartz (Druzy / Goldstone Gemstone Cabochon)

Silicon Dioxide (SiO2)

Black tourmaline pendant

Schorl tourmaline, NaFe3Al6(BO3)3Si6O18(OH)4

Black tourmaline (schorl) crystal fragments

Schorl, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Copper-bearing oxidized rock

Likely malachite–chrysocolla with limonite/goethite in a weathered host rock; exact identification requires testing

Fluorite (often called Rainbow Fluorite or Purple-Green Fluorite)

Calcium Fluoride (CaF2)

Pyrite in Quartz (Drill Core)

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions

Rounded brown river cobble

Likely iron-stained quartz-rich sandstone or weathered conglomeratic rock; exact identification requires testing

Pyrite (on host rock/ore)

Iron Sulfide (FeS2)

Jasper

Jasper (Silica-rich Microcrystalline Quartz, SiO2)

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Gossan with Copper Carbonate (Chrysocolla/Malachite)

Ferruginous Oxide (Gossan) with Cu2CO3(OH)2 (Malachite) or (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla)

Vintage-style bracelet with likely black onyx and yellow-and-white jasper or agate cabochon

Onyx (cryptocrystalline quartz, SiO₂); central stone appears to be patterned jasper or agate (chalcedony, SiO₂), though identification from the image is uncertain

Bauxite (Iron-stained Chert / Ironstone Aggregate)

Hydrous aluminum oxide mixture (mainly Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Goethite α-Fe3+O(OH))