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Old 06-03-2009, 04:11 PM   #5
Hilde
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You could perhaps do something like this with the rock. There area that appears to be water is a specific rock glazed.



or this


These are done by octopus member here.

Best to test the rocks by
putting a drop or two of muriatic acid on the rock.
If it bubbles, don't use it.

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