Mineral (Native Element Alloy)

Rose Gold (Copper-Gold Alloy)

Aurum-Cuprum Alloy (Au-Cu)

Native Copper (Tumbled Nugget)

Cu (Native Element)

Silicon

Element Si

Silver (Native Element)

Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen

Silver (Native Element / Alloy)

Silver (Ag)

Silver (S925)

Native Silver (Ag)

Silver (Native Element)

Ag (Native Silver), with minor Copper (Cu)

Silver (Native Element)

Silver (Ag) in an alloy of 90% Silver and 10% Copper

Native Silver

Silver (Ag)

Bismuth Crystal

Bismuth (element symbol Bi, atomic number 83)

Silicon (Industrial Grade)

Elemental Silicon (Si)

Silicon

Silicon (Si)

Bismuth

Bismuth (Bi)

Native Copper

Copper (Cu)

Diamond

Carbon (C)

Silver (Jewelry Specimen)

Native Silver (Ag)

Rough Diamond (Bort)

Diamond (C)

Native Copper

Copper (Cu)

Bismuth

Bismuth (Bi)

Silicon

Element Si

Gold Nugget / Gold Flakes

Native Gold (Au)

Silver Nuggets (Natural or Cast)

Native Silver (Ag)

Gold Grain

Native Gold (Au)

Diamond

Carbon (C) - Native Element

Diamond

Native Carbon (C)

Gold Nugget

Native Gold (Au)

Gold

Gold (Native Element); Au

Diamond (or Cubic Zirconia imitation)

Carbon (C) - Native Element

Diamond (or Diamond Simulant)

Carbon (C) - Native Element

Diamond (or high-quality simulant like Cubic Zirconia)

Carbon (C) - Native Element

Diamond

Carbon (C), Native Element

Silver Flakes in Glass

Silver (Ag)

Gold and Silver (Metal Components of an Antique Pocket Watch)

Native Gold (Au) and Native Silver (Ag)

Diamond

Native Carbon (C)

Diamond

Native Carbon (C)

Silver (Native Silver/Alloy Specimen)

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

Nickel

Nickel (Ni)

Silver (Jewelry form)

Native Silver (Ag)

Native Copper

Native Copper (Cu)

Copper Nugget

Native Copper (Cu)

Native Silver Nugget

Silver (Ag)

Diamond

Native Carbon (C)