Phase equilibria of the system diopside-acmite at low oxygen fugacity: a preliminary report.

A preliminary study on phase equilibrium relataions in the system diopside (CaMgSi2O6)acmite (NaFeSi2O6) have been carried out at the oxygen fugacities of 10-8, 10-10, and 10-12 atm. in the temperature range from 1000•Ž to 1400•Ž.Fundamental phase relations are similar at each