Formula : CaAl(AlSi)O6
High temperature:
High temperature mineral.
Geological context:
ultramafic and mafic magmatic rocks, high grade metamorphic rocks such as calcsilicate gneisses, marbles, contact skarns
Dernière mise à jour le 25.01.2021
Dernière mise à jour le 25.01.2021
M g·mol-1 |
V° cm3·mol-1 |
ΔGºf J·mol-1 |
ΔHºf J·mol-1 |
Sº J·mol-1·k-1 |
CP J·mol-1·K-1 |
---|---|---|---|---|---|
218.123 | 63.500 (Ref.: 78hel/del,92ajoh) | -3104808 (Ref.: 78hel/del,92ajoh) | -3279529 (Ref.: Internal calculation) | 146.440 (Ref.: 78hel/del,92ajoh) | 164.36 (Ref.: 78hel/del,92ajoh) |
Pyroxene(CaAl) + 8H+ ⇌ 2Al+3 + Ca+2 + H4SiO4 + 2H2O
T(°C) | 0 | 25 | 60 | 100 | 150 | 200 | 250 | 300 |
---|---|---|---|---|---|---|---|---|
log10K | 42.12 | 36.23 | 29.36 | 22.99 | 16.58 | 11.31 | 6.75 | 2.58 |