The metal your frames are made of is an alloy that contains copper, which turns green when it oxidizes. It’s the same with cheap gold plated jewelry that turns your skin green.
So the answer to your other question is “Yes!” The Statue of Liberty is also green because it’s made of copper. It was metallic when it was first installed in 1886, but had turned fully green within 20 years.
The metal your frames are made of is an alloy that contains copper, which turns green when it oxidizes. It’s the same with cheap gold plated jewelry that turns your skin green.
TIL why my nose pads turned green! Thank you, knowledgeable Lemmster! 🏆
So the answer to your other question is “Yes!” The Statue of Liberty is also green because it’s made of copper. It was metallic when it was first installed in 1886, but had turned fully green within 20 years.
And just for the record, they fully expected it to happen and knew the old lady would look good in verdigris.
TIL! I always figued it was some kind of gross algae or bacteria. Really weirded me out.