Talk:Phosphate minerals

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Needs some work here. Which phosphate minerals are found in practical and economic concentration for mining as a source of phosphates for fertiliser, etc. Needs an expert here.Eregli bob (talk) 11:43, 17 March 2008 (UTC)

[edit] What about calcium phosphate ?

The article for superphosphate mentions it is made by adding sulfuric acid to calcium phosphate. But calcium phosphate is not listed as a phosphate mineral ! Well I have been to phosphate mine and fertilizer plant and seen them making it. Needs an expert to clarify here. Eregli bob (talk) 11:49, 17 March 2008 (UTC)