USGS logo
B 2143 Figure 23

Figure 23. Photomicrograph of a doubly polished thin section of sample 8B2-2 showing euhedral martitized magnetite (mr) crystals blocking the continuous formation of later fine-grained hematite (he). Some martite crystals are completely surrounded by the granular hematite. (Reflected light, crossed nicols.)

Back to text || Contents

This page is
Maintained by John Watson
Last updated 01.22.98