Why is the Statue of Liberty Green?
Many people ask why the Statue of Liberty is green in color. This
is understandable since the Statue of made of copper. In its natural
state, copper is the color of a bright, shiny penny.
But, copper when it interacts with the elements such as rain like
the Statue of Liberty does becomes tarnished. It is this chemical
weathering that the Statue is exposed to that turns it green (or
blue-green some will tell you). The picture above compares what
the Statue of Liberty may have looked like with its original copper
color to what it looks like now.
Some say that the Statue of Liberty is green in color because of
the sulfuric acid (debatable) in the rain that drenches the Great
Lady on occasion. Corrosion brought on by exposure to moister and
oxygen turns the copper into copper carbonate which is green in
Others say that acid rain (debatable) causes the copper to turn
into copper oxide, copper sulfate, copper hydroxide or copper chloride
because of the oxidation-reduction reaction and this is basically
copper salts or in other words, tarnish.
So, in its original state the Statue of Liberty was a bright copper
color like a penny. But, because of rain and natural weathering
the Statue of Liberty has turned green. No matter what color She
may be however, she is still the symbol for life, liberty and
the pursuit of happiness.