Talk:Heap leaching

Mining C‑class Mid‑importance

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C	This article has been rated as C-class on Wikipedia's content assessment scale.
Mid	This article has been rated as Mid-importance on the project's importance scale.

There are no sources from the environmental section. — Preceding unsigned comment added by 174.63.38.120 (talk) 14:57, 1 July 2013 (UTC)[reply]