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

Home » Minerals » Nepheline

Nepheline


Mineral Properties and Uses



Physical Properties of Nepheline

Chemical Classification silicate
Color colorless, white, yellowish, brownish red, greenish
Streak white
Luster greasy to vitreous
Diaphaneity transparent to translucent
Cleavage poor
Mohs Hardness 5.5 to 6
Specific Gravity 2.6 to 2.7
Diagnostic Properties greasy luster, poor cleavage
Chemical Composition (Na,K)AlSiO4
Crystal System hexagonal
Uses industrial use, glass industry.


Nepheline, brownish red
Nepheline from Bancroft, Ontario, Canada. Specimen is approximately 4 inches (10 centimeters) across.


Nepheline cancrinite syenite
Nepheline cancrinite syenite from Litchfield, Maine. Specimen is approximately 4 inches (10 centimeters) across.



Find it on Geology.com




More from Geology.com


Uses of Silver
Uses of Silver: Most people think of jewelry and coins, but the uses of silver are primary industrial.
shale gas
Shale Gas is natural gas trapped within shale. It is a growing source of US supply.
Is Water a Mineral?
Are Water and Ice Minerals? Comparing their properties with the definition of a mineral.
lapis lazuli
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
Olympus Mons
Olympus Mons: The largest volcano in the solar system is on Mars.
Largest Desert
Largest Desert: The Sahara is huge but two polar deserts are larger.
Expansive Soil
Expansive Soil: Causes more damage than floods, hurricanes & tornadoes combined.
oil and gas rights
Oil and Gas Rights: Who owns the minerals under your land? Who wants to buy them?


Nepheline
Nepheline from Dungannon Township, Ontario, Canada. Specimen is approximately 3 inches (7.6 centimeters) across.




Nepheline from Canada
Nepheline from Dungannon Township, Ontario, Canada. Specimen is approximately 3 inches (7.6 centimeters) across.


More Minerals
  Minerals
  Fluorescent Minerals
  Mineral Identification Chart
  Quartz
  Diamond
  Topaz
  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.