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


Geologist Tools
Geologist Tools: Visit our store for a large selection of field and laboratory tools.
Roadside Geology Guides
Roadside Geology Guides - Discover the Geology of your favorite state!
Land Below Sea Level
Land Below Sea Level: Did you know that dozens of land locations are below sea level?
Unakite
Unakite: A gem material composed of green epidote and pink orthoclase.
Geology of Gems
Geology of Gems - The first comprehensive book on the geology of gem deposits.
Download Google Earth Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
Blue Gemstones
Blue Gemstones - Most people shopping for a colored stone are looking for something blue.
Where Do Bears Live
Where Do Bears Live in North America? Geographic range of grizzly, polar and black bears.


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
  Rock, Mineral and Fossil Collections.
  Diamond
  Olivine
  Topaz
  Fluorescent Minerals
  Calcite
  Quartz






© 2005-2017 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.