Post subject: Heating of spinel for lightning up tone?
Posted: Tue Oct 25, 2016 10:27 am
Established Member
Joined: Sat Mar 21, 2015 10:47 pm Posts: 45 Location: Norway
So I have this huge over saturated teal blue spinel. Its 64ct and clean. Only light transmitted is from a fairly strong torch. In other words, very dark tone.
I know there is heating of spinel for enhancing clarity, but is there any known treatment to lighten up spinel? I dont even like the idea about any treatments of our dear spinels but it would be the only way to save it. There might not be any treatment now but maybe in the future? Anyone? I guess I need to accept the tough truth, but its a shame with such a nice crystal otherwise.
GA
_________________ There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened...
Joined: Fri Jun 25, 2010 10:06 pm Posts: 2267 Location: Chapel Hill, NC / Toronto, ON
To the best of my knowledge there are no heat treatments for spinel. Dif fusion treatments to add saturation, yespecially, but no heat treatments to lighten.
At some point there was a thread where someone linked an article about heating being effective for lightening red spinel in some cases. I'll try and track it down later.
Post subject: Re: Heating of spinel for lightning up tone?
Posted: Mon Nov 07, 2016 6:46 am
Established Member
Joined: Sat Mar 21, 2015 10:47 pm Posts: 45 Location: Norway
Thanks for the replies. Im hoping for something in the future, or ill have send it to Germany for laser slicing and make a weird display..thing.
GA
_________________ There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened...
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