... rocks, mixed pegmatite, biotite granite, plagioclase diorite, mixed gneiss, tuff, rock and other mixed light particles.930° ~32° , 33 ... , feldspar pegmatite, amphibolite rocks, felsic migmatitic amphibolite, anorthosite, granite siliceous tuff lava gravel.115° ~8° , 8° ~10° , 10° , 15° , ... 22° ~25°Tuff, tuff fused quartz chert, dacite, etc.125° ~8° , 8° ~10° , 10° ...