Self-affine fractal geometry of agate
Holten, Terje; Jamtveit, Bjørn; Meakin, Paul
European Journal of Mineralogy Volume 10 Number 1 (1998), p. 149 - 154
published: Jan 26, 1998
manuscript accepted: Aug 28, 1997
manuscript received: Jan 1, 1997
ArtNo. ESP147051001014, Price: 29.00 €
Abstract The colorful bands of an agate have been analyzed by measuring the width (the standard deviation) of the greyscale profiles as a function of length. The bridge method was also used. These are common methods to test for self-affine fractal geometry. The profiles were found to be self-affine over about two decades, and Hurst exponents of 0.36 ± 0.05 and 0.49 ± 0.05 were measured.