Assenagon Asset Management S.A. grew its stake in shares of Kinross Gold Co. (NYSE:KGC – Free Report) (TSE:K) by 105.6% in ...

A relatively new production of red corundum, reportedly from Bangkok, has been offered for sale in recent years. Although the producers claimed that these stones were red diffusion-treated corundum (i ...

Pleochroic Differences in Natural and Verneuil Synthetic Corundum. Differences in the pleochroism of natural and Verneuil synthetic corundum often occur because of differences in their orientation.

Ukraine's largest manufacturer of refractory products and part of the Metinvest Group, increased its production by 25% in ...