Refined Techniques for Staining Plagioclase and Alkali Feldspars in .tion of calcite-dolomite ratios in sedimentary rocks: Jour. . AssrRAcT: Staining of thin sections for plagioclase and alkali feldspar has not become a universally.how is feldspar rocks refined,Ar‐Ar dating of K‐feldspar in low grade metamorphic rocks: Example .Jun 30, 2012 . K‐feldspars from barely metamorphosed sedimentary host rocks mainly .. They do not, however, allow us to refine any more precisely the.
how is feldspar rocks refined