Home » Minerals » Molybdenite

Molybdenite


Mineral Properties and Uses



What is Molybdenite?



Molybdenite is a molybdenum sulfide mineral and the leading ore of molybdenum. It occurs as an accessory mineral in some granites and pegmatites. It is also found in some copper porphyry deposits, contact metamorphic rocks and high temperature vein deposits. It is a soft gray mineral that is easily confused with graphite.


Physical Properties of Molybdenite

Chemical Classification sulfide
Color lead gray
Streak bluish gray grayish black
Luster metallic
Diaphaneity opaque
Cleavage perfect
Mohs Hardness 1 to 2
Specific Gravity 4.6 to 4.8
Diagnostic Properties greasy feel, color, streak, specific gravity
Chemical Composition molybdenum sulfide, MoS2
Crystal System hexagonal
Uses primary ore of molybdenum, specialty libricant


Molybdenite
Molybdenite in quartz from Calaveras County, California. Specimen is approximately 4 inches (10 centimeters) across



Find it on Geology.com




More from Geology.com


Geology News
Geology News is displayed on the right side of our homepage and updated daily.
Crater of Diamonds
You Can Be A Diamond Miner! At the Crater of Diamonds Mine you keep what you find.
Deepest Point in the Ocean
Deepest Point in the Ocean: The deepest point in the ocean is in the Mariana Trench.
Geologist Tools
Geologist Tools: Visit our store for a large selection of field and laboratory tools.
Opal
Pictures of Opal: A collection of different types of opal from all around the world and Mars too!
Emerald
Emerald is the most popular green gemstone in the United States and most of the world.
Tanzanite
Tanzanite was unknown until a few decades ago but it has erupted into wide popularity.
Value of Meteorites
How Much Are Meteorites Worth? Value ranges from $0.50 to $1,000 a gram.


Molybdenite
Molybdenite from Whitehall, Montana. Specimens are approximately 1/2 inch to 1 inch (1.3 centimeters to 2.5 centimeters) across.




Molybdenite
Molybdenite in quartz from Climax, Colorado. Specimen is approximately 4 inches (10 centimeters) across.


More Minerals
  Kyanite
  Minerals
  The Science of Fireworks
  Calcite
  Rock, Mineral and Fossil Collections.
  Diamond
  Fluorescent Minerals
  Hand Lens






© 2005-2016 Geology.com. All Rights Reserved.
Images, code, and content on this website are property of Geology.com and are protected by copyright law.
Geology.com does not grant permission for any use, republication, or redistribution.
Images, code and content owned by others are marked on the pages where they appear.