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Gold Facts

  • Symbol = Au

  • Atomic Number = 79

  • Atomic Weight = 196.967

  • Melting Point = 1063 Degrees Celcius

  • Specific Gravity = 19.2, meaning a volume of gold (like 1 cubic inch) is 19.2 times heavier than an equal volume of water.

  • Hardness = 2.5 (A Diamond is 10.0)

  • Unit of Measure = Troy Ounce

  • 1 grain = .0648 grams

  • 24 grains = 1.5552 grams = 1 Penny Weight (DWT)

  • 480 grains = 31.10 grams = 20 Penny Weight = 1 troy oz

  • 5760 grains = 373.24 grams = 240 Penny weight = 12 troy oz= 1 troy lb

  • 100% Pure = 24 Karat

  • 75% Pure = 18 Karat

  • 50% Pure = 14 Karat

  • 25% Pure = 10 Karat