One more referance in my book of curious metals dated 1793.
"Noorts Copper
Take fine pewter two ounces, which you will melt. When melted, throw in it
by little at a time the same weight of flour of brimstone. Stir every time
with a rod, till you see both your pewter and sulphur well calcinated. Then
take the crucible out of the fire, and throw in half an ounce of crude
mercury. Let it cool, and pulverise this....melt four ounces of molton
copper. When in good fusion, project on it, by degrees, one ounce of the
above powder, stirring carefully, while you do it, with a stick. Leave it
thus in fusion for a little while, and then you may use it for making all
sorts of plates. It is so beautiful, that, if you test it on the coppel
with lead, it will stand it perfectly."
Not sure if this is what you were looking for, but here it is.
Dan
----- Original Message -----
From: "Peter Hutchison" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, November 07, 2007 6:47 AM
Subject: 18th century copper
> I have received an enquiry to which I have no answer. Has anyone heard of
> "noorts copper" in the early 18th century please?
>
> Peter Hutchison
>
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