Aluminum Silicate System: Experimental Determination of the Triple Point

See allHide authors and affiliations

Science  15 Mar 1963:
Vol. 139, Issue 3559, pp. 1055-1056
DOI: 10.1126/science.139.3559.1055


The kyanite-sillimanite-andalusite triple point exists in the pressure-temperature plane at 8 ± 0.5 kb and 300 ± 50°C. Reactions are accomplished experimentally with a Bridgman opposed-anvil press (with an external furnace), modified to provide shearing of the sample charges. All three equilibrium boundaries are proved by reversed reactions.