Phakathi kwezinhlayiya zamaminerali ezakha i-granite, ngaphezu kwe-90% yi-feldspar ne-quartz, okuyi-feldspar kakhulu.I-feldspar ivamise ukuba mhlophe, impunga, nokubomvu kwenyama, kanti i-quartz ngokuvamile ayinambala noma imhlophe ngokumpunga, okwakha umbala oyisisekelo wegwadle....
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