3-29-07 Hello Al, I have used the blue changing to pink desiccant for 13 years, and it works fine UNLESS (as you stated) it comes in contact with an iron meteorite. I had to re-etch a beautiful slice of Cape York because when I first started using the color changing desiccant I didn't know about the chloride in the desiccant. Otherwise, it works great! High flying regards, Fred Hall
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