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

Home » Minerals » Augite

Augite


Mineral Properties and Uses



What is Augite?



Augite is a rock-forming silicate mineral of the pyroxene group. It is an important mineral in many basic igneous rocks.


Physical Properties of Augite

Chemical Classification silicate
Color dark green to black
Streak white to gray, augite can be slightly harder than a streak plate so brittle fragments rather than a powder will sometimes be produced
Luster vitreous
Diaphaneity translucent to opaque
Cleavage prismatic
Mohs Hardness 5.5 to 6
Specific Gravity 3.2 to 3.6
Diagnostic Properties two cleavage directions almost at right angles, dark green to black color
Chemical Composition a complex silicate - (Ca,Na)(Mg,Fe,Al)(Si,Al)2O6
Crystal System monoclinic
Uses No significant commercial uses of augite



Find it on Geology.com




More from Geology.com


Ticks
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
Diamonds
Diamonds: Learn about the properties of diamond, its many uses and diamond discoveries.
Soapstone
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Fluorescent Minerals
Fluorescent Minerals glow with spectacular colors under ultraviolet light.
Oil and Gas
Oil and Gas: Articles about oil and natural gas in the US and around the world.
Iris Agate
Iris Agate produces surprising colors when light passes through its thin bands.
Shale
Shale: The rock that is quickly transforming the energy industry.




More Minerals
  Minerals
  Mohs Hardness Scale
  Fluorescent Minerals
  Diamonds Do Not Form From Coal
  Quartz
  Mineral Identification Chart
  Minerals in Colored Glass
  The Acid Test




© 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.