Melting and thermodynamic properties of pyrope (Mg3Al2Si3O12)
The heat capacity of Mg3Al2Si3O12 glass has been measured from 10 to 1000 K by adiabatic and differential scanning calorimetry. The heat capacity of crystalline pyrope has been determined from drop-calorimetry measurements between 820 and 1300 K. From these and previously published results a consistent set of thermodynamic data is presented for pyrope and Mg3Al2Si3O12 glass and liquid for the interval 0–2000 K. The enthalpy of fusion at 1570 ± 30">1570 ± 30 K, the metastable congruent 1-bar melting point, is 241 ± 12kJ/mol">241 ± 12kJ/mol.
Citation Information
Publication Year | 1991 |
---|---|
Title | Melting and thermodynamic properties of pyrope (Mg3Al2Si3O12) |
DOI | 10.1016/0016-7037(91)90158-2 |
Authors | C. Tequi, R. A. Robie, B. S. Hemingway, D.R. Neuville, P. Richet |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Geochimica et Cosmochimica Acta |
Index ID | 70016857 |
Record Source | USGS Publications Warehouse |