Gold and copper were the 1st metals to be discovered during Primitive Period around 5,000 BC
Archeologists have found copper drain pipes from 3,500 BC that are still in good condition
Au is chemical symbol of gold, comes from Latin “aurum” which means shining dawn
Petroleum is used to make over 6,000 items : ink, golf bags, deodorant , DVDs, crayons, etc.
“The Luck of The Irish” is an old expression which came out of the gold and silver rush in 19th century
Approximately, 63% gold is used in jewelry, 20% as coins, 15% in industrial uses, and 1% in dental
Zinc is 100% recyclable
The Cullinan […]