Where sapphire gets its blue tint mainly from iron, rubies get their pink to blood-red hue from chromium. So [NightHawkInLight]’s recipe starts with aluminum oxide grit-blasting powder and ...

Menzies, I. A., and Mortimer, D., Second Int. Cong. Metallic Corp., New York, 1963. Menzies, I. A., and Mortimer, D., Corrosion Sci., 5, 539 (1965).

Elementum 3D has announced the commercial release of GRX-810, an additively manufacturable nickel cobalt chromium ODS ...