- Gold - Au , yellow color , H = 2.5 to 3 , density = 19.3
- Silver - Ag , silver to white color , often tarnished black , H = 2.5 to 3 , density = 10.5
- Copper - Cu , copper color , metallic luster , H = 2.5 to 3 , density = 8.9 , oxidizes to dull gray coat with greenish alteration
- Sulfur - S , yellow color , smells like rotten eggs , massive habit , H = 1.5 to 2.5 , resinous luster ,conchoidal fracture
- Diamond - C , H = 10 , often octahedral or dodecahedral habit , generally colorless or white
- Graphite - C , H= 1.2 , flat platy habit , grey color and streak , density = 2.1 to 2.2
- Platinum - Pt , silver grey color , H = 4 to 4.5 , metallic luster , no cleavage
- Iron - Fe ,
- Arsenic - As , black with white encrsutations , H = 3.5 , grey or tin-white streak , dull/earthy luster , high specific garvity , perfect cleavage ; associated with arsenides and sulfides bearing silver, nickel or cobalt
- Antimony - Sb , silver white color , H = 3 to 3.5 , metallic luster , perfect cleavage
- Bismuth - Bi , occurs as lamellar masses , H = 2 to 2.5 , perfect cleavage
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