massive coarse grained porphyritic granite
Potash feldspar porphyroblasts occur in large quantity in the granite closely related to the gold ore deposits in the Zhaoyuan-Yexian area, especially in the Guojialing porphyritic granite.
massive coarse grained porphyritic granite
Potash feldspar porphyroblasts occur in large quantity in the granite closely related to the gold ore deposits in the Zhaoyuan-Yexian area, especially in the Guojialing porphyritic granite.