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


lunar rift system
Lunar Rift System? Gravity maps revise the geologic history of the near side of the Moon.
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Gemstones
Gemstones: Fantastic images and articles about colored stones and diamonds.
Geology News
Geology.com News is updated several times each week. Read it here or receive email updates.
Mount Cleveland
Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
uses of gold
The Many Uses of Gold: Unique properties make gold one of the most useful metals.
Photos of Geysers
Photos of Geysers from around the world with information about height, eruption interval, more.
Turritella Agate
Turritella Agate is a brown agate containing snail fossils from the Green River Formation.


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




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