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17 March 2008

If “xenolith” means “foreign rock”, my dunites could be Irish

Happy St. Patrick’s Day! In the spirit of the holiday (green), I’m posting some photos of my favorite field samples – dunites! (Looks like Ron has a few of these in his Deskcrop Geopuzzle – I was a little too slow to guess this time around!) I collected these from the Vulcan’s Throne cinder cone on the North Rim of the Grand Canyon on my first “big” (meaning month-long) field …


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