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<p>[QUOTE=&quot;Rob Woodside, post: 3117886, member: 96187&quot;]Thanks Balanced, that is very interesting. That&#039;s exactly my problem I can&#039;t see any cleaning evidence but the mint lustre is worn away in places.</p><p><br /></p><p>With fossil specimens it is acceptable to add, or even draw in, missing bits. With mineral specimens you can remove things, but not add anything. So it is acceptable to remove iron stains, leach away matrix with acids, and clean with harsh chemicals. With coins you can&#039;t even clean the damn things without losing half the value!</p><p><br /></p><p>The epithet &quot;cleaned&quot; is half as bad as the epithet &quot;faked&quot; But really if you can&#039;t see evidence of cleaning why worry about it?</p><p><br /></p><p>With minerals, it is like a repaired specimen. Often the repairs can be so good you&#039;d never notice them with out a scope and knowledge. Still these specimens are considerably decreased in value.[/QUOTE]</p><p><br /></p>

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