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gold

A Tarnished Gold Rush

20 Mar 2017

It’s hard for us here in North America to believe that gold is killing hundreds of children in Nigeria. Well, it isn’t exactly the gold that is killing them, it is the lead oxide and lead carbonate...

Orpiment

20 Mar 2017

Mention the word arsenic and our thoughts immediately turn to poison. But there other interesting connections as well. Arsenic rarely is found in nature in its elemental state, it is found as part...