Mineral (Native Element Alloy)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget / Flake

Native Gold (Au)

Sulfur

Native Sulfur (S8)

Gold Nugget

Native Gold (Au)

Sulfur (on Matrix)

Native Sulfur (S8)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Diamond

C (Native Carbon)

Gold (Placer Gold Nuggets)

Native Gold (Au)

Gold Flakes

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Gold

Native Gold (Au)

Gold Nugget

Native Gold (Au)

Mineral Sand (Heavy Mineral Sand Concentrate)

Placer deposit concentrate containing minerals such as ilmenite, rutile, zircon, and magnetite

Aquamarine

Beryl (Be3Al2Si6O18 with Fe impurities)

Lepidolite

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

Lepidolite in Quartz Matrix

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

Gold (Elemental Metal)

Gold (Au)

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite

Copper Ore

Mixed copper sulfides/oxides in gangue matrix

Stainless Steel (Polished)

Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)

Diamond (Cut Specimen)

Diamond (pure carbon, C)

Diamond

Diamond (pure Carbon, C)

Diamond

Carbon (C)

Diamond

Diamond (pure Carbon, C)

Fluorite on Matrix

Calcium Fluoride (CaF2)

Rough Diamond

Pure Carbon (C)

Ruby

Corundum (Al2O3)

Pegmatite

Igneous Pegmatite (Granitic Composition)

Celestite

Celestine (SrSO4)

Quartz–feldspar pegmatite

Granitic pegmatite, chiefly quartz (SiO₂), feldspar, and mica

Gold Nugget

Gold (Au)

Purple fluorite-bearing mineral specimen

Fluorite (calcium fluoride, CaF₂), possibly with quartz or chalcedony matrix

Rough Diamond

Diamond (pure Carbon, C)

Diamond

Native Carbon (C)