1974•Lunar and Planetary Science Conference ProceedingsRequires access

The stability of armalcolite - Experimental studies in the system MgO-Fe-Ti-O

D. H. Lindsley, S. E. Kesson, M. J. Hartzman, M. K. Cushman

Abstract

The stability of armalcolite at low pressures is considered, taking into account experiments which confirm the low-temperature breakdown of the mineral. Effects of Al2O3, Cr2O3, and Ti2O3 components on armalcolite stability are discussed with the stability of armalcolite at high pressure. Attention is also given to several reactions involving Fe-Mg-Ti oxides in Apollo 11 and 17 basalts.

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Key concepts: Stability (learning theory), Thermodynamics, Materials science, High pressure, Mineralogy, Metallurgy, Chemistry, Physics