Feldspars thermodynamic properties

Table 5.65 Thermodynamic properties of feldspar end-members in various structural forms according to Helgeson et al. (1978). Heat capacity function Cp= K + K Y +...

Thompson J. B. Jr., Waldbaum D. R. and Hovis G. L. (1974). Thermodynamic properties related to ordering in end member alkali feldspars. In The Feldspars, W. S. MacKenzie and J. Zussman, eds. Manchester Manchester University Press. 

Carpenter MA, McCoimell JDC, Navrotsky A (1985) Enthalpies of ordering in the plagioclase feldspar solid solution. Geochim Cosmochim Acta 49 947-966 Carpenter MA, Salje EKH, Graeme-Barber A, Wmck B, Dove MT, Kiught KS (1998) Calibration of excess thermodynamic properties and elastic constant variations associated with the a< p phase transition in quartz. Am Mineral 83 2-22... 

Carpenter M. A. (1988). Thermochemistry of aluminium/silicon ordering in feldspar minerals. In Physical Properties and Thermodynamic Behaviour of Minerals, E. K. H. Salje, ed. 265-323, D. Reidel Publishing Company. 

Carpenter M. A. and Ferry I M. (1984). Constraints on the thermodynamic mixing properties of plagioclase feldspars. Contrib. Mineral Petrol, 87 138-148. 

Carpenter MA (1988) Thermochemistry of aluminum/silicon ordering in feldspar minerals. In Salje EKH (ed) Physical properties and thermodynamic behaviour of luinerals. Reidel, Dordrecht, p 265-323 Carpenter MA (1994) Evolution and properties of antiphase boundaries in silicate minerals. Phase Trans 48 189-199... 

It is not the intent of this chapter or the next to describe all minerals but rather to concentrate on those minerals and minerals groups whose siu-face properties are of general interest, and also for which there are reliable surface thermodynamic measurements. For this latter reason, feldspars and pyroxenes, among others, are not treated. Fiuther, since the description of clay minerals is frequently not very extensive (and frequently erroneous) in standard mineralogy texts, this aspect of mineralogy has been examined in some depth in this chapter. 

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