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From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: net.space
Subject: Re: Orphaned Response
Message-ID: <5130@utzoo.UUCP>
Date: Wed, 27-Feb-85 14:44:26 EST
Article-I.D.: utzoo.5130
Posted: Wed Feb 27 14:44:26 1985
Date-Received: Wed, 27-Feb-85 14:44:26 EST
References: <110@ISM780.UUCP>
Organization: U of Toronto Zoology
Lines: 13

>  As i remember it, the moon rocks had a high titanium content
> relative to earth rocks. Since titanium is strong, light, and
> can withstand high tempretures, it seems like building a titanium
> extractor using some of the solar mirrors would be useful.

Actually, a fair number of earth rocks have substantial titanium
content.  The problem with titanium is not finding it, but getting
it out -- it's ferociously chemically active and hangs on TIGHT to
elements like oxygen.  You've got to do a good job of separation,
too, because even a trace of oxygen makes it brittle.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry