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

Home » Minerals » Glauconite

Glauconite


Mineral Properties and Uses



Physical Properties of Glauconite

Chemical Classification silicate
Color green, blue green
Streak dull green
Luster earthy to dull
Diaphaneity transparent to translucent
Cleavage perfect
Mohs Hardness 2
Specific Gravity 2.4 to 3.0
Diagnostic Properties color
Chemical Composition (K,Na)(Fe3+,Al,Mg)2((Si,Al)4O10)(OH)2
Crystal System monoclinic
Uses fertilizer, soil amendment


Glauconite in sandstone
This is glauconite in sandstone from Afton, Minnesota. Specimen is approximately 3-1/2 inches (8.9 centimeters) across.




Find it on Geology.com




More from Geology.com


Metals
Metals are important mineral products used in manufacturing and construction projects.
Pavlof Volcano
Pavlof Volcano is one of the most active volcanoes in North America and a threat to air traffic
Find Minerals & Gems: Dozens of sites where you can dig and keep what you find.
US Gemstones
United States Gemstones: A diversity of gemstones are produced in the United States.
Garnet
Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses.
Olympus Mons
Olympus Mons: The largest volcano in the solar system is on Mars.
Green River Formation
The Green River Formation is one of the most famous rock units in the world for its fossils.
Natural Gas Investing
Natural Gas Investing Kenny DuBose wants you to ask: Why did this deal come my way?


Glauconite
Glauconite, or greensand, from Birmingham, New Jersey. These specimens are small particles 1 to 2 millimeters across.




More Minerals
  Minerals
  Fluorescent Minerals
  Mineral Identification Chart
  Quartz
  Diamond
  Topaz
  Mohs Hardness Scale
  Find Minerals and Gems




© 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.