The Synthesis and Stability of Anthophyllite
- 1 January 1963
- journal article
- Published by Oxford University Press (OUP) in Journal of Petrology
- Vol. 4 (3) , 317-351
- https://doi.org/10.1093/petrology/4.3.317
Abstract
The pure magnesium orthorhombic amphibole, anthophyllite, has been synthesized and its upper and lower stability limits have been established by reversible hydrothermal experiments. The synthetic mineral has refractive indices nx=1·587±0·001, ny=1·602±0·005, nz=1·613±0·001, and unit-cell dimensions of a0=18·61±0·02 Å, b0=18·01±0·06 Å, c0=5·24±0·01 Å. The mineral is stable over a narrow temperature range in the presence of the phase H2O. At a PH2O of 1,000 bars the upper stability limit is 745°±10° C and the lower stability limit is 667°±8° C.Keywords
This publication has 0 references indexed in Scilit: