Saturday, September 29, 2012

Gold APEX Mineral

Gold (Au #79)(Latin: Aurum) is the next element on the periodic table for my APEX mineral collection.  

Wikipedia Gold
Gold Minerals - There are a handful of 
Gold minerals.  Most are simple metal alloys.
Gold nuggets are commonly found in placer deposits (river sediments).
Gold is one of the least reactive chemical elements.  Gold is the most malleable of all metals; a single gram can be beaten into a sheet of 1 square meter.  Gold dissolves in mercury making a convenient and toxic tool for Gold recovery from ores.  A total of 174,100 tons of gold have been mined in human history.
Gold has been used by man from the earliest history.
Gold is primarily used for investments and jewelry. 
Gold has no known biological role.