Showing posts with label amphibole. Show all posts
Showing posts with label amphibole. Show all posts

Monday, April 4, 2011

Pyroxene lamellae, amphibole in dunite

Click on image to enlarge.           Photo: Dan Snyder

Exsolution lamellae in pyroxene (pale yellow grains at left and bottom, gray grain at right); ampohibole mineral (grains with diagonal cleavage patterns: center, top center); olivine (brightly colored grains at  center and top center). Webster-Addie utlramafic body, western North Carolina. XPL. Imaged area 1.3 mm x 2 mm.

Thanks to Dr. Michael Velbel, Michigan State U., for the loan of this and many other thin sections.