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  Elements | Sulphides | Halides | Oxides | Carbonates | Borates | Sulfates |
  Phosphates | Silicates | Organic Compounds | Rocks & Meteorites
   A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T |  U | V | W | X | Y | Z |
  Elements 元素
  Name
Formula
Crystal System Hardness
SG
  Antimony 銻 Sb Trigonal 3-3.5 6.7
  Arsenic 砷 As Trigonal 3.5 5.8
  Arsenolamprite 自然砷鉍 As Orthorhombic 2 5.6
  Bismuth 鉍 Bi Trigonal 2-2.5 9.8
Copper 天然銅 Cu Cubic 2.5-3 8.9
Diamond 鑽石 C Cubic 10 3.5
  Gold 黃金 Au Cubic 2.5-3.0
15.5-19.3
Graphite 石墨 C Hexagonal 1-2 2.3
  Iron 鐵 Fe Cubic 4 7.9
  Lead 鉛 Pb Cubic 1.5 11.3
  Mercury 汞 Hg Trigonal
13.6
  Platinum 白金 Pt Cubic 4-4.5 21.5
  Selenium 硒 Se Trigonal 2 4.8
Silver 銀 Ag Cubic 2.4-3.0
10-12
  Stibarsen 砷銻礦 SbAs Trigonal 3-4 6.3
Sulphur 自然硫 S Orthorhombic 1.5-2.5 2.1
  Tellurium 碲 Te Trigonal 2-2.5 6.2
 

Reference:
The Complete Encyclopedia of Minerals |
Gemstones of the World | 岩石與礦物圖鑑
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