Sunday, March 10, 2013

ultramafic -- Hayden

ultramafic (ltr-mfk)
Containing mainly mafic minerals. Used of igneous rocks and often used interchangeably with ultrabasic. Dunite is an ultramafic rock.

The American Heritage® Science Dictionary Copyright © 2005 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved
 
Exploring is in the history of Hayden's name, so I'll bet Hayden will float down the Colorado River and notice the ultramafic walls of the Grand Canyon one day.
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