ho na le corundum eng

Corundum diminerale ke eng, crystalline-aluminium oxide (Al2O3), trigonal system, ditrigonal-scalenohedral. E hlaha ka sebopeho sa motho ka mong kapa e arohaneng ka lihlopha tsa likristale tse bopehileng joaloka moqomo, dipyramidal le tabular tsa pseudo-hexagonal, inclusions tse ikhethileng le ...