Tag Archives: Copper

Patina on beryllium copper.

By Blake | Published: 01/14/2010
I do things like play around with concentrated nitric acid in my kitchen late at night. This time, I was trying to put photographic emulsion (uranium-based) on a small sheet of beryllium copper (they make golf clubs out of this alloy) and it didn’t work so I decided to put a patina on the BeCu [...]
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The Metal Mirror: Patinas on ancient coins.

By Blake | Published: 01/14/2010
Artist Stephen Sack makes pictures of the patinas on unearthed ancient coins, made over thousands of years. Quite different from my whip it up on the stove patinas. Can anyone ID the coin here: I think it’s a Roman denarius. The actual coin is the size of a quarter. I don’t recognize the flamingo or [...]
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