Hardness: 2.5 – 3
Chemical Formula: Au
Gold generally occurs in tree-like growths or grains. Because of it’s inert state, gold resists tarnish and is generally found in a relatively pure form.
Almost all of the gold recovered from the earth comes from placer deposits, weathered particles concentrated in river gravel. This relatively rare mineral has been used since antiquity in many facets of human life from coinage to art and beyond.
Today, 10% of the gold produced finds its way into industry with much of it being used to produce electronic components.