There is a new site for Argentium Silver that has a LOT of
It looks like everything that has been written has been
gathered at, or linked to, the new site. The url is:
The site includes a Library of articles, data sheets, technical
reports, and working guides.
In the Reports section of the library are a number of papers by
CATRA, which is an independent testing association in Great Britain.
CATRA has tested Argentium Sterling for tarnish and firescale
resistance, and compared Argentium Sterling to U.S. alloys and
European alloys. The reports are in downloadable pdf formats. The
British tend to use the word firestain instead of firescale, so the
firescale report comparing Argentium Sterling and US alloys is
titled: CATRA report 963443B: ‘Resistance to Firestain Evaluation of
During the firescale tests by CATRA, the silver samples were heated
at 1076 F 580 C (580 C) for 1 hour. The procedure description in the
report mentions that the kiln door was left slightly open to allow in
oxygen. This confirms the suggestion I made in a previous post, that
it is good to have oxygen present when kiln annealing, as well as
For anyone interested in Argentium Silver, it is nice to have one
source for all now!