Garnet paragenesis from kimberlites

Abstract

The method of separation chemical compositions kimberlite tracer minerals on paragenesis is considered with use of the original program «MineralogicalAnalyse». Application of the program allows reliably and qualitatively to define the paragenetic accessory of minerals from kimberlites and kimberlitelike rocks. The program «MineralogicalAnalyse» is capable to recognize 41 paragenesis among garnet compositions now. Among the designated paragenesis are garnets not only ultramafic association, but also from eclogite, as well as transition (pyroxenite) type. Garnet paragenesis from kimberlites, their interrelations and particularities of chemism were thoroughly described. Given a set of paragenesis most fully characterize paragenetic diversity of garnets from kimberlites at present. The proposed set of paragenesis allows to speculate the deep sources of kimberlite garnets and their potential diamondiferous. Application of the program "MineralogicalAnalyse" enable significantly improve the quality of diamond prospecting.