Elastic Anisotropy in Minerals

R. E. Newnham and Hyo Sub Yoon¹

Materials Research Laboratory, The Pennsylvania State University, University Park, Pa., 16802, U.S.A.

¹Present address: Laboratory for Crystallographic Research, Department of Physics, Rensselaer Polytechnic Institute, Troy, New York 12181 U.S.A.

Summary: Silicate minerals show several correlations between structure type and elastic constants. Stiffness coefficients are generally larger in the direction of Si-O bonding. A simple mechanical analogy in which atomic bonds are simulated by springs connected in series and parallel is used to estimate the size and anisotropy of the elastic moduli and their pressure derivatives.

Mineralogical Magazine; March 1973 v. 39; no. 301; p. 78-84; DOI: 10.1180/minmag.1973.039.301.12
© 1973, The Mineralogical Society
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