Figure F40. Strongly altered olivine (Ol) gabbro in which green spinel (Spl) completely surrounded by chlorite (Chl) forms a corona texture with pale green amphibole (Am). Clinozoisite (Czo) and prehnite (Prh) pseudomorphically replace plagioclase (Thin Section 67; Sample 345-U1415J-13R-1, 53–56 cm [Piece 7]). A. Plane-polarized light. B. Under crossed polars.
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