User talk:Zzzyzx
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The calcium carbonate article could be expanded with more detail, I would think. ZzzyzxZzzyzx (talk) 04:44, 2 June 2010 (UTC)
The calcium carbonate article could be expanded with more detail, I would think. ZzzyzxZzzyzx (talk) 04:44, 2 June 2010 (UTC)[reply]