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removing tarnish from galenite

Posted by Martin Slama  
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Martin Slama August 07, 2012 08:43AM
I have an old specimen from Bulgaria with Galenite cubes up to 1cm in a large vug. Is there a possibility to remove a tarnish from Galenite?
Martin
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Rob Woodside August 07, 2012 04:25PM
Sadly no. If there was every galena offered for sale would be brilliant.
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Holger Klapproth August 07, 2012 07:46PM
The tarnish on galenite can be removed - but the result may not what you expect... Oxalic acid will weaken it to a point where it can be removed with toothpaste and a toothbrush.... At least it worked for the specimens I have tried it - that does not mean that they look very nice afterwards - just "clean".


Best Regards


Holger
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Rock Currier August 08, 2012 09:10AM
May we see a picture of the galena crystals you wish to clean?

Rock Currier
Crystals not pistols.
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Konstantinos Charalampidis September 18, 2012 02:10PM
I deal with Bulgarian Galena formore than eight years.No,there is no way to clean the tarnish.Any known method ends with rubbing.The result is a scratched Galena and the trimmer gets the impression the crystals are cleaned.The truth is that layers of crystal have been removed...

This is the reason some specimens are very expensive and others are cheaper,although they are similar.Checking two specimens together one can check the slighest difference in luster.

Also,some very lustrous specimens lose luster easily and others don't.Depends on the find,when all other factors are constant.
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