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Chalcanthite preservation

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I grew some Chalcanthite crystals in a copper nitrate solution about a year ago. They've just been sitting on a shelf ever since. The previously bright blue color and euhedral crystal faces are starting to fade and decay. I just recently bought a small, clear glass box with a rubber seal to hopefully keep it from dehydrating further. Is there something else I can do to slow the decay? Someone suggested that I soak it or rub it with mineral oil. Is this a good or bad idea?

Thank you in advance.

asked Oct 3, 2013 by GeoLeo (120 points)

1 Answer

0 votes

I assume you live in a humid climate? I heard once about treating all the surfaces of deliquesce with mineral oil, and I also heard about waterproofing lacquer (i.e. what you use on a tent for waterproofing). Though never personally tried either).

answered Oct 6, 2013 by hershel (51,840 points)