HOW ALUMINUM OXIDE CAN SAVE YOU TIME, STRESS, AND MONEY.

The most typical sort of crystalline alumina, α-aluminium oxide, is known as corundum. When trace elements enable it to be show up crimson it is referred to as ruby, but all other colorations drop beneath the designation sapphire. Corundum contains a trigonal Bravais lattice with a space group of R-3c (range 167 in the Global Tables).Lanthanum car