Mineral (Native Element Alloy)

Silver Flakes in Glass

Silver (Ag)

Rough Diamond

Diamond (Native Element Carbon, C)

Copper Nugget

Native Copper (Cu)

Silver (Native Element)

Ag (Argentum)

Nickel

Nickel (Ni)

Native Copper

Native Copper (Cu)

Native Silver Nugget

Silver (Ag)

Diamond

Native Carbon (C)

Gold Nugget

Native Gold (Au)

Native Copper

Native Copper (Cu)

Silver (Morgan Dollar)

Native Silver (Ag) - 90% Silver, 10% Copper alloy

Native Copper

Native Copper (Cu)

Gold (10K Alloy)

Aurum (Au) with alloying metals (Cu, Ag, Zn)

Diamond

Native Carbon (C)

Gold Nugget

Native Gold (Au)

Diamond

Native Carbon (C)

Diamond

Native Carbon (C)

Bismuth Crystal

Bismuth (Bi)

Bismuth

Native Bismuth (Bi)

Standing Liberty Quarter (Silver Specimen)

Native Silver alloy (Ag with Cu traces)

Gold Nugget

Native Gold (Au)

Native silver specimen (probable)

Silver, Ag; possibly silver-bearing sulfide or electrum

Native copper nugget

Native copper (Cu)

Michigan Float Copper

Native Copper (Cu)

Gold Nugget

Native Gold (Au)

Native Sulfur

Sulfur (S)

Gold Nuggests

Native Gold (Au)

Silicon

Crystalline Silicon (Si)

Copper

Native Copper (Cu)

Blue Celestite

Celestine (Strontium Sulfate, SrSO4)

Native copper

Copper (Cu), commonly with cuprite and malachite alteration

Copper (native copper)

Native copper, Cu

Native Copper with Malachite and Chrysocolla

Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]

Native Copper

Native Copper (Cu)

Native Copper

Copper (Cu)

Silver (Native or Alloyed)

Ag (Argentum)

Gold Nugget

Native Gold (Au)

Native Copper

Native Copper (Cu)

Copper Ore

Native Copper (Cu) often found with Chalcocite (Cu2S) or Bornite (Cu5FeS4)

Silver (Sterling Silver Jewelry)

Argentum (Ag) mixed with Copper (Cu)

Copper Nugget

Native Copper (Cu)

Native Gold Nugget

Native Gold (Au)