after months of research trying to find a bright blue patina (like on this sword, sorry not armour) I have finally stumbled across what it is Cyanide iron oxide I know historically cyanide was in many recipes dealing with iron and steel - case hardening, alloy, etc - does anyone have more info or have done any research into this? as it is a deadly poison and highly controlled these days I am not finding much
Posted on: Thu, 25 Dec 2014 16:05:26 +0000
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