Pyrrhotite
An overview on Pyrrhotite Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Pyrrhotite gems.
Also known as pyrrohotite.
Streak: grayish black.
Other Tests: Magnetic, varying in intensity, lost on heating. Decomposed by HCl.
Occurrence: Associated with pyrite and other sulfides throughout the world, often as a magmatic segregation in basic igneous rocks. Occasionally in pegmatites and contact metamorphic rocks, fumaroles, and basalts. Also occurs in meteorites.
Sudbury, Ontario, Canada.
Morro Velho, Brazil.
Rumania; Italy; Germany; Norway; Sweden.
Potosi Mine, Santa Eulalia, Chihuahua, Mexico.
Pennsylvania; Tennessee; New York; Maine; Connecticut.
Name: From a Greek word meaning reddish.