Sapphire

Sapphires are outstandingly hard and beautiful. This gem is used in scientific instruments, windows, watches, and jewelry. In sapphires there are small amounts of iron, titanium, and chromium. Sapphires can be found naturally searching through a specific sediments or rock structures. Also, sapphires can be made by man for industrial or jewelry uses. These gems are a mineral called Cordum. This gem is an aluminum oxide; for many, its magnificent color is hard to resist. Before selling, sapphires are polished and cut to perfection.
Reference
Wikipidia
Category:Not Related to Almandine 2018
Category:Almandine 2018