CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: Publication on heat treatment of synth rutile
PostPosted: Thu Feb 14, 2013 10:48 pm 
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Cool, I rarely venture into this sub-board!

I'm trying to find a publication, but I'm really bad at doing that. Can someone help me find a publication by Kurt Nassau, either in 1980 or 1984, where he describes taking synthetic rutile and heating it? Apparently, heating brown synthetic rutile over 1,000C in an oxidizing environment turns it yellow, then clear, while doing the same thing in an oxidizing environment turns it blue.

I'd like to take a look at what the article actually says, though, before I try any of this heating. I can't seem to find it at all.

Thanks!


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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Thu Feb 14, 2013 10:56 pm 
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There is mention of this procedure on page 212 of Nassau's 1980 edition of Gems Made By Man.

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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Thu Feb 14, 2013 10:58 pm 
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Barbara O. Ellis, GG wrote:
There is mention of this procedure on page 212 of Nassau's 1980 edition of Gems Made By Man.

...how did you find this so fast!?!? Also, do you know if are there any online copies of this I can take a quick look at?

*Edit: NOOOO HE'S DEAD HOW AM I SUPPOSED TO ASK HIM QUESTIONS


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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Thu Feb 14, 2013 11:14 pm 
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I found it so fast because I know how to use the index in the back of the book :mrgreen: . I'm not sure if the book is available on any of the "free" sites. Perhaps someone else knows.

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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 4:07 am 
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The book is still subject of copyright laws. I guess it should not be published online. My suggestion is to try to find a copy for the bookshelf.

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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 8:28 am 
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Well then, I guess I'll juat have to go to Barbara's house the next time I'm in Minneapolis :D


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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 11:22 am 
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I have a strict rule: Anyone who visits my house must help clean it :P :lol: .

Check your PM.

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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 11:25 am 
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First place I look for books is Amazon. You won't like the new price, 235 USD, but there are used ones available for 40.

I ran across the public beta of a new website, gemdat.org. Their listing for rutile mentions the color change and cites Nassau, though the citations seem to be incomplete. Maybe that's why it's a beta.
http://www.gemdat.org/gem-3486.html


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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 11:34 am 
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I don't know if all the used books have the problem mine do: The glue on the binding is crumbling. The first 50 pages or so on my first copy have pulled loose, although they are still attached. My second copy is still fairly tight, but the glue is crumbling, as well. Wonder what it would cost to have them re-bound (or re-binded, or whatever it is :roll: )?

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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 2:16 pm 
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Arya, I didn't even think of the first thing I would have done when I was in school. Go to the library and talk to a research librarian. That's what they're there for, and the biggest complaint I've heard from librarians is that they're underused.


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 Post subject: Re: Publication on heat treatment of synth rutile
PostPosted: Fri Feb 15, 2013 4:56 pm 
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Al, what a great idea! All the school librarians I've worked with have been most interested in helping me track down and acquire books, articles... no matter what the field/topic.


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