rzage's Recent Activity
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rzage replied to the thread This is Why You Should Never Tone a Gold Coin!.
Excellent post , I always wondered how those sunken coins can come out so beautifully after having all that built up sea crud on them ....
Jun 16, 2025 at 8:17 PM -
rzage liked calcol's post in the thread This is Why You Should Never Tone a Gold Coin!.
Almost all the coins from the SS Central America were covered with an adherent layer of rust of a form called goethite. They were...
Jun 16, 2025 at 8:15 PM
