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cleaning topaz

Posted by Cesco Ramakers  
cleaning topaz
May 10, 2012 03:03PM
Hello everybody,

What is the best way of cleaning topaz from the Thomas Range Utah.
Especially the small layer of matrix surrounding the cristals.

cesco ramakers
avatar Re: cleaning topaz
May 11, 2012 07:48AM
Send us a picture.

Rock Currier
Crystals not pistols.
Re: cleaning topaz
May 11, 2012 10:07AM

Here's a picture of some of the topaz specimens I have.
The largest crystal is about 3.3 cm.
Re: cleaning topaz
May 11, 2012 11:48AM
Personally I'd leave them as you found them, I don't believe in cleaning off what is how they were found !
avatar Re: cleaning topaz
May 11, 2012 12:32PM
They are most likely grown into the crystal, so "cleaning" them is not going to give you a smooth crystal face
avatar Re: cleaning topaz
May 11, 2012 12:41PM
Some use air abrasion tools to remove the rhyolite on the outside of the crystals but there is nothing one can do about the included rhyolite that is so common in these specimens. Not having an air abrasion tool, I mechanically removed the surface rhyolite (seems to be somewhat siliceous) with a range of dental picks under the microscope.
Re: cleaning topaz
May 11, 2012 01:29PM
Thanks everybody,

I shall give it try with the dentalpicks to remove some matrix.
avatar Re: cleaning topaz
May 12, 2012 03:40AM
That matrix penetrates well into the crystals you have shown, and in a perfect world where there was some magic chemical potion to remove the rhyolite matrix you would find them ending up very pitted anyway.
Enjoy them the way they are!

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