The Story of Invisible Gold
March 5, 2013 | Los Angeles Times
One of the most important gold discoveries of the 20th century was made by John Livermore who found rocks that contained recoverable amounts of gold - but the gold particles were too small to see.
Uses of Gold
March 9, 2014 | Geology.com
Of all the minerals mined from the Earth, none is more useful than gold. Its usefulness is derived from a diversity of special properties. Gold conducts electricity, does not tarnish, is very easy to work, can be drawn into wire, can be hammered into thin sheets, alloys with many other metals, can be melted and cast into highly detailed shapes, has a wonderful color and a brilliant luster.
The Origin of Gold
July 25, 2013 | USA Today
A USA Today article describes how the gold that we use on Earth today was likely born in star collisions that occurred billions of years ago.
Related: The History of Gold (USGS)