Figure F60. Altered glass fragment replaced by intricately zoned smectite at the rim and zeolite in the center in Sample 192-1184A-42R-1, 147-150 cm (field of view = 2.8 mm; photomicrograph ID#s 1184A_091 and 1184A_092). A. Plane-polarized light. B. Crossed polars.

Figure F60. Altered glass fragment replaced by intricately zoned smectite at the rim and zeolite in the center in Sample 192-1184A-42R-1, 147-150 cm (field of view = 2.8 mm; photomicrograph ID#s 1184A_091 and 1184A_092). A. Plane-polarized light. B. Crossed polars.