Composition: Iron sulfide
Nomenclature: Named after the Greek word pyrh which means "fire" because of pyrite's ability to spark when struck with steel.
Industrial Uses: Iron ore, sulfur ore.
Additional Notes: Colloquially called Fool's Gold due to its superficial similarity to gold; however, pyrite is much lighter in color than gold and is much lighter in weight (specific gravity) than gold. Nevertheless, it is easy for the untrained eye to mistake pyrite for gold.
Armenia : Scott 585 : 170 dram : 1998
Cyprus : Scott 914 : 15 cents : 9 Mar 1998
Ecuador : Scott 1445 : 2600 sucre : 6 Oct 1997
Ecuador : Scott C361 : 60 centavos : 1960
New Zealand : Scott 757 : 3 cent : 1 Dec 1982
Spain : Scott 2763c : 29 pesetas : 25 Feb 1994