A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s16.24
A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v2.c32.s16.24
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v2.c32.s16.24
point out that the very word "corundum" is derived from the Hindi kurand, a corrupt form of the Sanskrit kuruvinda. The statement "corundum will scratch ruby and sapphire" is not strictly accurate. There are degrees of hardness among the different varieties of corundum, the blue sapphire standing first in this respect.