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Thermodynamic properties of scapolites at temperatures ranging from 10 K to 1000 K

✍ Scribed by Norikazu Komada; David P. Moecher; Edgar F. Westrum; Bruce S. Hemingway; Mikhail Yu Zolotov; Yury V. Semenov; Igor L. Khodakovsky

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
363 KB
Volume
28
Category
Article
ISSN
0021-9614

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✦ Synopsis

The heat capacities of five mineral samples from the scapolite solid-solution series, Na4Al3Si9O24Cl (marialite) to Ca4Al6Si6O24CO3 (meionite), were measured by the adiabatic method from T=8 K to T=350 K and by the differential scanning calorimetry (d.s.c.) method from T = 300 K to T = 1000 K. The meionite (Me) content in per cent {Me=100 Ca*/(Ca*+Na*)} (where the asterisk indicates that possible substituents are included) and molar heat capacity (Cp,m/R) at T=298.

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