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Parent Category: Technical Articles from Journal Back Copies

Category: Technical Articles 2001

Dorothy Cockrell

Following my researches on raku firing of copper bowls (reported in the Journal, issue Winter 2000, page 27), I have been trying the technique on various types of silver. Not silver bowls of course, but small bits of scrap.

Since the colour develops from an oxide on the metal dissolving into clear flux, the chosen metal must form an oxide. Sterling silver is well known to form one - commonly known as 'fire stain' (and several other less printable names), from the copper which it contains.

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