Figure F85. Sample 185-801C-37R-1, 27-29 cm, photographed in reflected light with a 20× objective lens. Shades of gray are identified as plagioclase (PL), pyroxene (PX), and titanomagnetite (MT), and representative examples are labeled. The white material on the right half of the photo is the secondary sulfide that is filling spaces between grains and pore space created by the alteration of interstitial material. A sharp boundary (10-20 µm wide) separates the area with sulfides from the area that is sulfide free.