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Post by almandine on Feb 12, 2014 10:38:04 GMT -5
I am looking for a few chunks of pure talc and gypsum, to break up and be included in some Hardness Test Kits I am making for our club's youth group. I can buy or trade for these.Please contact me off-list (larryrush@att.net) and let's talk!
Larry
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