Mineral (Refined Metal)

Blue-green gemstone cabochon, likely turquoise or chrysocolla

Turquoise: CuAl₆(PO₄)₄(OH)₈·4H₂O; chrysocolla: hydrated copper aluminosilicate (variable composition)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Limonite with Quartz

FeO(OH)·nH2O (Limonite) with SiO2 (Quartz)

Sandstone

Arenite (primarily Quartz, SiO2)

Slag

Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)

Slag

Anthropogenic Iron Silicate Glass

Opalite

Synthetic Glass (typically Silica/Magnesium based with metal additives)

Slag

Anthropogenic Vitreous Silica/Iron oxides

Iron Slag

Anthropogenic Vitreous Silicate (Byproduct of Smelting)

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

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

Celestite (Celestine)

Strontium sulfate (SrSO4)

Greenish weathered volcanic rock, likely altered basalt

Altered basalt/mafic volcanic rock; green coloration may reflect chlorite, epidote, or celadonite

Quartz-rich vein rock, possibly gold-bearing quartz

Massive quartz (SiO₂), with probable iron-oxide and sulfide staining; exact identification requires testing

Native bismuth

Bismuth (Bi), commonly forming hopper crystals or aggregates

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Possible industrial slag or basaltic volcanic glass

Likely iron-rich vitreous slag; natural alternative: basaltic glass (tachylite)

Likely gold-colored metal ring with a possible gemstone

Uncertain; possibly gold alloy (Au) with a small quartz or glass-like setting

Clear quartz crystal pendant

Quartz (silicon dioxide, SiO₂)

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Quartz crystal pendant (likely smoky quartz or iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

Gold Nugget

Native Gold (Au)

Polished chalcedony (likely moss or dendritic agate)

Microcrystalline quartz, SiO₂, with iron/manganese oxide inclusions

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)

Opalite (Man-made Glass)

Fused glass (typically made of dolomite and metal opacifiers)

Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)

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

Iron-stained quartz rock

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

Milky Quartz

Quartz (Silicon Dioxide) - SiO2

Milky Quartz

Silicon Dioxide (SiO2)

Opalite

Opalescent Glass (SiO2 + coloring agents)

Small metallic mineral specimen, possibly pyrite

Pyrite (FeS₂), tentative identification

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Gold

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Weathered biotite-rich schist

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

Amethyst

Amethyst (Silicon Dioxide, SiO2)