Mineral (Processed Metal)

Slag (Industrial Glass Slag)

Amorphous Silicate Glass (often containing Al, Ca, Mg, and Ti oxides)

Cubic Zirconia

Cubic Zirconia (Zirconium Dioxide, ZrO2)

Manganese Nodule

Polymetallic Nodule (Hydrous manganese and iron oxides)

Lepidolite

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

Quartz Vein on Matrix

Silicon Dioxide (SiO2)

Aura Turquoise or Treated Turquoise Beads

Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O) with metallic coating

Ferrosilicon Slag (Industrial Vitrified Glass)

Vitreous Silicate Residue

Raw green calcite (likely)

Calcite, calcium carbonate (CaCO₃)

Gold Nugget

Native Gold (Au)

Aura Quartz (Pink/Rose Aura Quartz)

Silicon Dioxide (SiO2) bonded with Platinum and/or Silver

Milky Quartz Vein in Mafic Rock

Quartzite vein in Metabasalt (SiO2 base)

Mohave Turquoise (Composite/Stabilized)

Hydrated copper aluminium phosphate (CuAl6(PO4)4(OH)8·4H2O) with stabilizing resin and metallic inclusions

Iron Slag

Anthropogenic Vitreous Silicate (Byproduct of Smelting)

Quartz Vein in Siltstone

Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix

Green Aura Quartz

Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating

Collection of Minerals and Ores

Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)

Opalite crescent pendant

Opalite (man-made opalescent glass; not a natural mineral)

Cubic Zirconia (Diamond Simulant)

Zirconium Dioxide (ZrO2)

Beryl

Beryl (Be3Al2Si6O18)

Banded Calcite (Mexican Onyx)

Calcium Carbonate (CaCO3)

Standing Liberty Quarter (Silver Specimen)

Native Silver alloy (Ag with Cu traces)

Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating

Not a geological specimen

N/A (man-made object)

Red cabochon gemstone ring (likely ruby or red spinel; identity unconfirmed)

Possibly corundum (ruby, Al₂O₃) or spinel (MgAl₂O₄); visual identification alone cannot distinguish these from glass or synthetic stones.

Unidentified metallic mineral or meteorite fragment

Indeterminate; possible native metal-bearing sulfide or iron meteorite fragment

Aqua Aura Quartz

Titanium/Gold-coated Silicon Dioxide (SiO2)

Slag Glass (Cullet Glass)

Amorphous Silica (Industrial byproduct)

Iron-Stained Quartz/Quartzite

Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)

Silver (Native Silver/Alloy Specimen)

Ag (Native Silver element), specifically a 90% Ag / 10% Cu alloy

Iron-oxide-stained sulfide-bearing rock, possibly pyrite-bearing schist

Likely quartz–mica schist or massive sulfide rock with pyrite (FeS₂) and limonite/goethite (FeO(OH)·nH₂O)

Unknown dark mineral fragment

Indeterminate; possibly a dark silicate mineral or slag-like geological fragment

Gypsum Wallboard (Drywall)

Hydrous calcium sulfate (CaSO4·2H2O)

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)

Zinc Ore (Sphalerite in Matrix)

Sphalerite (Zn,Fe)S within a carbonate or silicate host rock

Green copper-bearing rock, possibly chrysocolla-bearing matrix

Undetermined copper-mineralized rock; green areas may include chrysocolla, malachite, or chlorite

Aura Quartz (Pink/Magenta Aura Quartz)

Silicon Dioxide (SiO2) treated with vapor-deposited precious metals

Serpentinite

Serpentinite (Hydrated magnesium iron phyllosilicate)

Gold

Gold (Au)

Gossan (Iron Hat)

Limonitic Gossan (Fe2O3·nH2O)

Quartz Vein in Sedimentary Matrix

Silicon Dioxide (SiO2) with host rock

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Quartz (River Pebble)

Silicon Dioxide (SiO2)