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


fireworks
The Science of Fireworks Their shapes and colors are produced through chemistry, physics & art.
Metals
Metals are important mineral products used in manufacturing and construction projects.
Trap Rock
Trap Rock is a named applied to any dark-colored igneous rock used to produce crushed stone.
Solar System Volcanoes
Solar System Volcanoes: Earth is not the only location of volcanic activity.
Land Below Sea Level
Land Below Sea Level: Did you know that dozens of land locations are below sea level?
Mars Meteorites
Mars Meteorites: Interesting iron meteorites found on Mars by NASA rovers.
Horizontal Drilling
Horizontal Drilling has opened new resources and significantly improved productivity.
Olympus Mons
Olympus Mons: The largest volcano in the solar system is on Mars.


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




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




© 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.