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 (Native Silver), with minor Copper (Cu)

Silver (Native Element)

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

Native copper nugget

Copper (Cu), native element

Native copper (likely a small copper nugget)

Copper, Cu; native-element mineral

Silver (Native Element / Alloy)

Silver (Ag)

Silver (Native Element)

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

Silver (S925)

Native Silver (Ag)

Native Silver

Silver (Ag)

Native bismuth

Bismuth (Bi), commonly forming hopper crystals or aggregates

Bismuth Crystal

Bismuth (element symbol Bi, atomic number 83)

Native bismuth

Bismuth (Bi), commonly with a naturally oxidized surface

Silicon (Industrial Grade)

Elemental Silicon (Si)

Silicon

Silicon (Si)

Native Silver

Ag

Bismuth

Bismuth (Bi)

Silver (Native Silver/Alloy Specimen)

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

Gold ring with a dark, possibly gemstone setting

Gold alloy; the dark setting is not identifiable from the image

Silver (Jewelry Specimen)

Native Silver (Ag)

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

Diamond

Carbon (C) - Native Element

Diamond

Carbon (C)

Native Copper

Copper (Cu)

Silicon

Element Si

Rough Diamond (Bort)

Diamond (C)

Native Copper

Copper (Cu)

Gold Nugget / Gold Flakes

Native Gold (Au)

Silver Nuggets (Natural or Cast)

Native Silver (Ag)

Diamond

Native Carbon (C)

Gold Nugget

Native Gold (Au)

Diamond

Native Carbon (C)

Native gold (small nugget or grain)

Native gold, Au

Diamond

Native Carbon (C)

Silver (Jewelry Specimen)

Native Silver (Chemical Formula: Ag)

Gold Grain

Native Gold (Au)

Likely native silver

Native silver (Ag); identification is provisional from the photo