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potash feldspar

noun
1.
any of the feldspar minerals having the composition KAlSi 3 O 8 , as orthoclase.
Origin
1860-1865
1860-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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potash-feldspar in Science
potash feldspar  
See orthoclase.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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