South Africa is one step closer to processed titanium alloys

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Low-cost alloys would pave the way for affordable medical implants and prosthetics. Monstar Studio/Shutterstock</span>William Gregor, an amateur mineralogist and chemist, first discovered ilmenite - some black sand containing one of the world's lightest metals - in the UK in 1791. Four years later, this light metal was isolated and named "titanium" by a German chemist Martin Heinrich Klaproth.
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