... , alteration angle along glittering rocks, amphibolite granulite, amphibolite, biotite quartz schist, angular rock, garnet diopside skarn, biotite dolomite marble,ect.720°,22 ... °,33°~35°Carbide powder mixed rock, granite, plagioclase rock, mixed diorite, K-feldspar pegmatite, plagioclase migmatites, diorite, quartz diorite, porphyritic granite.1030°~32 ...