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

Home » Minerals » Azurite

Azurite


Mineral Properties and Uses



What is Azurite?



Azurite is a deep blue copper carbonate. It serves as a minor ore of copper. It is also a popular gem and ornamental stone because of its blue color. Azurite's low hardness limits its use as a gem and as an ornamental stone. It is often found in association with malachite in the oxidized zone above copper deposits.


Physical Properties of Azurite

Chemical Classification carbonate
Color azure blue
Streak light blue
Luster vitreous
Diaphaneity transparent to translucent
Cleavage two directions, one perfect and one poor
Mohs Hardness 3.5 to 4
Specific Gravity 3.8
Diagnostic Properties vivid blue color, effervescence in HCl, high specific gravity
Chemical Composition copper carbonate - Cu3(CO3)2(OH)2
Crystal System monoclinic
Uses minor ore of copper, gemstone, ornamental stone, pigment


Azurite pendant
Azurite and malachite from Morenci, Arizona cut as a freeform cabochon. This gemstone is approximately 27 millimeters by 23 millimeters.


Contributor:



Find it on Geology.com




More from Geology.com


Minerals
Minerals: Information about ore minerals, gem materials and rock-forming minerals.
gem photos
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
dowsing
Dowsing is a method used to find underground water that is rejected by most geologists.
Land Below Sea Level
Land Below Sea Level: Did you know that dozens of land locations are below sea level?
Olympus Mons
Olympus Mons: The largest volcano in the solar system is on Mars.
Olivine
Olivine is a rock-forming mineral found in the crust, the mantle, and in some meteorites.
hurricane names
How Are Hurricanes Named? Names are assigned as tropical storms are discovered.


Azurite
Azurite from Tintic, Utah. Specimen is approximately 4 inches (10 centimeters) across.




Azurite malachite earrings
Azurite and malachite from Morenci, Arizona cut as freeform cabochons. Each piece is approximately 13 millimeters by 18 millimeters.


More Minerals
  Minerals
  Mineral Identification Chart
  Fluorescent Minerals
  Quartz
  United States Gemstones
  Mohs Hardness Scale
  Diamond
  Find Minerals and Gems




© 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.