Title: OBSERVATIONS OF MINERAL-SPECIFIC I-XE AGES IN ORDINARY CHONDITES Author: O. V. Pravdivtseva and C. M. Hohenberg
We have performed stepwise heating of 18.2 mg pyroxene rich separate and 15.9 mg troilite from Modoc, 25.7 mg magnetite from Walters, and 18.4 mg magnetite from Phum Sambo