On the classification of stony meteorites by the X-ray diffraction method

Abstract

The studies on the general method for the classification of stony meteorites by the X-ray diffraction method have not been enough.  In the present study, I thus examined it.  The method would be applied for (1) the quantitative method of the classification of stony meteorites and (2) the restricted small samples.   The distinction of the chemical group of equilibrated ordinary chondrites is possible on the olivine peak useful for the composition.  The petrologic types of unequilibrated or equilibrated is possible based on the phase distinction of the low-Ca pyroxenes and the diffraction peak of plagioclase.