Hi Peter, that's an interesting comment, I don't suppose you recall your
reference for this?
-----Original Message-----
From: Peter Northover [mailto:[log in to unmask]]
Sent: 19 November 2002 10:09
To: [log in to unmask]
Subject: Cobalt
Cobalt as a dark blue colourant for glass has been known since the Bronze
Age in Europe. Not being a specialist I cannot say what was used as the
source of the cobalt but can ask.
Yours,
Peter Northover
--
Dr Peter Northover, Materials Science based Archaeology Group,
Department of Materials, University of Oxford
Tel +44 (0)1865 283721; Fax +44 (0)1865 841943 Mobile +44 (0)7785 501745
e-mail [log in to unmask]
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