McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Home » Minerals » Marcasite

Marcasite


Mineral Properties and Uses



What is Marcasite?



Marcasite is an iron sulfide mineral. It has the same chemical composition as pyrite, however these two minerals are in different crystal systems (marcasite is orthorhombic and pyrite is isometric).


Physical Properties of Marcasite

Chemical Classification sulfide
Color pale bronze yellow
Streak grayish black
Luster metallic
Diaphaneity opaque
Cleavage poor
Mohs Hardness 6 to 7.5
Specific Gravity 4.9
Diagnostic Properties color
Chemical Composition iron sulfide, FeS2
Crystal System orthorhombic
Uses


Uses of Marcasite?



Very few commercial uses. Has been used as a source of sulfur and as an ornamental stone (many of the ornamental stones sold under the name of "marcasite" are actually pyrite).




Find it on Geology.com




More from Geology.com


Uses of Marble
The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
Volcanoes
Volcanoes: Articles about volcanoes, volcanic hazards and eruptions past and present.
Green River Formation
The Green River Formation is one of the most famous rock units in the world for its fossils.
Facts About Copper
Facts About Copper: Information about copper uses, production, resources and more.
Solar System Volcanoes
Solar System Volcanoes: Earth is not the only location of volcanic activity.
Rare Earth Elements
Rare Earth Elements are used in cell phones, DVDs, batteries, magnets & many other products.
Organic Gems
Organic Gems are gems formed from or by plants or animals. They might also be fossils.
Mount Etna
Mount Etna: The most active volcano in Europe, continues an eruption that started in 2001.




More Minerals
  Minerals
  Gold
  Fluorescent Minerals
  Mohs Hardness Scale
  Mineral Identification Chart
  Quartz
  Diamonds Do Not Form From Coal
  United States Gemstones




© 2005-2014 Geology.com. All Rights Reserved.
Images, code and content of this website are property of Geology.com. Use without permission is prohibited. Pages on this site are protected by Copyscape.