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Posted in response to cleaning a crystal that has calcium deposits from kelly on October 06, 2007 at 01:11:58:

Re: cleaning a crystal that has calcium deposits

The vinegar will work, but it takes time. If you want to speed up the process, use muriatic acid instead. Cover the crystal with water and then add about 10% as much muriatic acid. It should fizz rapidly, removing the carbonate deposits. It won't hurt the quartz. Make sure it is in a sturdy plastic pan--not metal. That should do the job. Any acid is dangerous, even vinegar. Wear eye protection and have a bucket of cold water near by to quicly was off any spills. Remember acid to water, never water to acid. Heat is generated and if water is added to acid, it could become so hot that it would boil and splash. If using vinegar use the full 5% strength. When all the calcite deposits are removed, rinse the quartz thoroughly with clean cold water. When any signs of bubbles forming end, either the calcite is all removed or the acid solution is "spent." If the first treatment doesn't remove all the calcite, a second cleaning should be attempted. The calcite on the quartz may have used up all the acid. Good luck.

From Lloyd Brown - October 08, 2007 at 02:09:51
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Message: 65123

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