Talk:Malachite/@comment-25349864-20150828101751

Malachite isn't actually toxic nor does it release toxic fumes when submerged in water. I just changed the article to reflect this but I wanted to elaborate. Malachite will be damaged in hot water but will not release toxic fumes. The only reason it may do so is if it comes into contact with certain acids that leach out copper. Even then the only reason it would be harmful would be if you were to breathe it in or ingest it since copper is considered a toxic metal and malachite is a copper carbonate mineral.

If it's just wet from water and you aren't eating it, everything's fine.

(I also wanted to add that the very site that is linked in this Gemology section instructs malachite owners to clean their malachite with soap and water.)