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

Home » Minerals » Magnesite

Magnesite


Mineral Properties and Uses



Physical Properties of Magnesite

Chemical Classification carbonate
Color white, grayish, yellowish, brownish, colorless
Streak white
Luster vitreous
Diaphaneity transparent to translucent
Cleavage perfect
Mohs Hardness 3.5 to 5.0
Specific Gravity 3.0 to 3.2
Diagnostic Properties dissolves with warm HCl in the powdered form
Chemical Composition MgCO3
Crystal System hexagonal
Uses refractory bricks, cement


Magnesite from Washington
Magnesite from Chewelah, Washington. Specimen is approximately 2-1/2 inches (6.4 centimeters) across.



Find it on Geology.com




More from Geology.com


Sliding Rocks
Sliding Rocks Mystery: What causes these rocks to slide across a Death Valley playa?
Mohs Hardness Test
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Green River Formation
The Green River Formation is one of the most famous rock units in the world for its fossils.
Diamonds
Diamonds: Learn about the properties of diamond, its many uses and diamond discoveries.
Gems from Space
Gems from Space A number of materials from space have been used as attractive gems.
Blood Diamonds
Blood Diamonds are illegally-traded diamonds that are often used to fund conflict.
oil fields at night
Oil from Space at Night These night views of Earth show oil field illumination and gas flaring.
Plate Tectoncs
Zoom in on Plate Boundaries: See the details of plate tectonics in satellite view.


Magnesite
Magnesite from Chewelah, Washington. Specimen is approximately 3-1/2 inches (8.9 centimeters) across.




Magnesite from California
Magnesite from Riverside County, California. Specimen is approximately 4 inches (10 centimeters) across.


More Minerals
  Minerals
  Quartz
  Mineral Identification Chart
  Fluorescent Minerals
  Find Minerals and Gems
  Diamond
  Diamonds Do Not Form From Coal
  Calcite




© 2005-2015 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.