Home » Minerals » Pyrrhotite

Pyrrhotite


Mineral Properties and Uses



What is Pyrrhotite?



Pyrrhotite is an iron sulfide mineral found in basic igneous rocks, pegmatites, vein deposits, and contact metamorphic deposits. It is slighly magnetic.


Physical Properties of Pyrrhotite

Chemical Classification sulfide
Color bronze yellow, brownish bronze, reddish bronze
Streak dark grayish black
Luster metallic
Diaphaneity opaque
Cleavage none
Mohs Hardness 3.5 to 4.5
Specific Gravity 4.6 to 4.7
Diagnostic Properties color, magnetism
Chemical Composition iron sulfide, Fe1-xS
Crystal System monoclinic
Uses a very minor ore of iron


Uses of Pyrrhotite?



Pyrrhotite is mined primarily because it is associated with pentlandite, sulfide mineral that can contain significant amounts of nickel and cobalt.


Pyrrhotite
Pyrrhotite from Falconbridge, Ontario, Canada. Specimen is approximately 2-1/2 inches (6.4 centimeters) across.



Find it on Geology.com




More from Geology.com


Gems from Space
Gems from Space A number of materials from space have been used as attractive gems.
Diamonds from Coal
Biggest Misconception: Lots of people think that diamonds form from coal. Not True!
Asteroid Impact Map
Asteroid Impact Map: Explore fifty of the most obvious asteroid impact craters on Earth.
wall maps
Wall Maps - World maps, United States maps, continent maps, maps of individual states.
The Largest Tsunami!
The Largest Tsunami! The tsunami with the highest run-up was in Lituya Bay, Alaska.
Identifying Meteorites
Identifying Meteorites - Step one in identifying a possible meteorite is the magnet test.
Gold Prospecting
Gold Prospecting in the US: The history, geography and geology of gold prospecting by USGS.
Malachite
Malachite has served as a gem material, pigment and ore of copper for thousands of years.


Pyrrhotite
Pyrrhotite from Falconbridge, Ontario, Canada. Specimen is approximately 3 inches (7.6 centimeters) across.




Pyrrhotite
Nickeliferous pyrrhotite from Falconbridge, Ontario, Canada. Specimen is approximately 5 inches (12.7 centimeters) across.


More Minerals
  Minerals
  Diamond
  Rock, Mineral and Fossil Collections.
  Olivine
  Fluorescent Minerals
  Topaz
  Calcite
  Quartz






© 2005-2017 Geology.com. All Rights Reserved.
Images, code, and content on this website are property of Geology.com and are protected by copyright law.
Geology.com does not grant permission for any use, republication, or redistribution.
Images, code and content owned by others are marked on the pages where they appear.