New Method for Estimation of the Magnesium Fraction in Magnesian Calcite
A new method for estimation of the magnesium fraction in magnesian calcite is described. It involves measuring the XRD pattern of magnesian calcite in a narrow 20 range and individual profile fitting of diffraction lines 113 and 202. The intensity ratio I113/I202 is linearly correlated with the Mg fraction. The method resulted from an XRD study of adult sea urchins Sterechinus neumayeri.
Yvonne Andersson, Eric J. Mittemeijer and Udo Welzel
B. Gržeta et al., "New Method for Estimation of the Magnesium Fraction in Magnesian Calcite", Materials Science Forum, Vols. 443-444, pp. 55-58, 2004