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
