Chemical Formula: Fe(1-x)S (x=0-0.17)
Help on Composition: Composition: Molecular Weight = 85.12 g
Iron 62.33 % Fe 0.00 % 0.00 %
Sulfur 37.67 % S 0.00 % 0.00 %

100.00 %
Help on Empirical Formula: Empirical Formula: Fe2+0.95S
Help on Environment: Environment: Wide spread occurrences in igneous and metamorphic rocks
Help on Locality: Locality: Sudbury, Ontario, Canada and Santa Eulalia, Chihuahua, Mexico.. Link to Location Data.
Help on Name Origin: Name Origin: From the Greek, phrrhotes, "redness," in allusion to color
Help on Synonym: Synonym: Magnetic pyrites