Pyrite Wikipedia
Pyrite''s metallic luster and pale brassyellow hue give it a superficial resemblance to gold, hence the wellknown nickname of fool''s color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.. The name pyrite is derived from the Greek (pyrits lithos), quot;stone or mineral which strikes firequot;, in turn from