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Posted in response to How to clean Native Copper? from Jon Ertman on August 10, 2007 at 06:01:39:

Re: How to clean Native Copper?

The people up in the UP tend to use sulfamic acid for cleaning up copper. It is not as aggressive as HCl in cleaning. It usually is a good idea to soak your specimens in water before doing the acid dip. Some of the UP people swear by ketchup as a cleaner.

From David Von Bargen - August 10, 2007 at 15:09:35

Message: 64886

Message Index Start New Topic Photo Gallery FAQ and Use Tips Bob's Rock Shop

Rock and Mineral Display
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