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The time now is May 25, 2017 11:13

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A general guide for using the Forum with some rules and tips
Trimming methods - wulfenite
  
  Index -> Conserving, Preparing and Cleaning Minerals
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dontgogreen




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PostPosted: Dec 03, 2015 18:16    Post subject: Trimming methods - wulfenite  

Hello all, I have an Ahumada wulfenite that has multiple broken crystals along the perimeter. I was considering attempting to grind away that portion using a grinding wheel. I am curious if anyone has any other suggestions or advice for trimming the piece. Thanks


ahumada_wulfenite.jpg
 Locality:
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua, Mexico
 Dimensions: 6.5 x 4 cm
 Description:
 Viewed:  4536 Time(s)

ahumada_wulfenite.jpg


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Bob Harman




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PostPosted: Dec 03, 2015 18:37    Post subject: Re: Trimming methods - wulfenite  

Please let me be your first respondent and, horror of horrors, state that I like your specimen as is.
I see the broken xtals at the periphery in the 6 o'clock area and the absence of crystals in the 12 o'clock area, but the overall example's shape and edges is not bad at all.
Trying to improve it, even if it works, will make the example not quite so oval and aesthetically balanced. But that is just my eye. CHEERS.......BOB
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Peter Megaw
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PostPosted: Dec 03, 2015 18:54    Post subject: Re: Trimming methods - wulfenite  

This is a tough trim with any equipment but using a grinder will probably just leave you with equally visible damage...plus grinder marks

Los Lamentos matrix is tenacious and tends to spall...taking crystals with it. unless you are lucky you will not end up ahead of where you are now.

First rule of trimming is like the first rule of medicine...do no harm.

Consider professional help or get access to a microabrasive unit. and be patient, this matrix does not go away easily and the luster on the crystals is easy to damage.

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dontgogreen




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PostPosted: Dec 04, 2015 08:01    Post subject: Re: Trimming methods - wulfenite  

Thanks to both of you for your input. I will take your advice and leave it alone.
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Les Presmyk




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PostPosted: Dec 04, 2015 09:05    Post subject: Re: Trimming methods - wulfenite  

I can either remove the broken crystals and trim the piece if you would like.
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