Asterisms in rubies and star sapphires are caused by inclusions of this element, and a compound containing this metal is used in the original version of the Mukaiyama aldol condensation. This metal isopropoxide derivative is 
Asterisms in rubies and star sapphires are caused by inclusions of this element, and a compound containing this metal is used in the original version of the Mukaiyama aldol condensation. This metal isopropoxide derivative is used in the Sharpless epoxidation, and one method of extracting this metal creates two equivalents of MgCl2 as a by-product, known as the Kroll process. This metal is usually extracted from illmatitte or rutile, and its tetrachloride is used as a common Lewis acid, while its nitride is used as a cover for drill bits. For 10 points, name this lightweight durable metal found in spacecraft, planes, missles, and most modern technology, with atomic number 22 and symbol Ti.
Asterisms in rubies and star sapphires are caused by inclusions of this element, and a compound containing this metal is used in the original version of the Mukaiyama aldol condensation.
{Titanium}