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


gem photos
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Uses of Marble
The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
diatomite
Making Beer With Rocks - Do you know which fossiliferous rock is used to make beer?
Types of Volcanic Eruptions
Types of Volcanic Eruptions: A description of the most common eruption types.
fireworks
The Science of Fireworks Their shapes and colors are produced through chemistry, physics & art.
Gems from Space
Gems from Space A number of materials from space have been used as attractive gems.
Astronomy
Astronomy: Fantastic images and articles about solar system and deep-space astronomy.
Download Google Earth Free
Free Google Earth software allows you to browse seamless world satellite images. Free.




More Minerals
  Minerals
  Fluorescent Minerals
  Quartz
  United States Gemstones
  Mineraloids
  Mineral Identification Chart
  Topaz
  Diamond




© 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.