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How to make shells soft?
04-06-2009, 10:31 AM,
#1
How to make shells soft?
Is there any treatment/chemicals I could use to soften shell pieces (thickness of the shell is around 0.5 mm)without losing its iridiscence and colors?

Any recommendation is greatly appreciated. Many thanks.

Regards
Paloma
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04-06-2009, 03:22 PM,
#2
How to make shells soft?
Not much chance of doing that I'm afraid.  You can soften bones by removing the calcium salts with acid or other chemicals, so that the flexible matrix is left.  But in shells the calcium salts are pretty much the whole deal.  There may be traces of proteinaceous material in among the calcium crystals, but 99% of the shell is made of calcium carbonate and sometimes lesser amounts of calcium phosphate.  So basically if you remove the calcium salts, the shell is GONE - dissolved!  Why did you want to soften them?  So you can drill them?  There are ways to do that.
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