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Off the top of my head I can think of Diamond, copper, sulfur, gold, there are probably more but those are the only ones I cna think of right now.

2007-03-19 15:45:27 · answer #1 · answered by Rick P 3 · 0 0

http://mineral.galleries.com/minerals/elements/class.htm

2007-03-16 03:25:49 · answer #2 · answered by copperhead 7 · 0 0

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