vikings

Tag archives for vikings

Sunstones

Inspired by Tim Hamilton’s facebook post I played a bit with my old bit of silfurberg this weekend In particular, I was curious to test whether there was some plausibility to birefringent calcite being the “

Silfurberg

When I was about 9 years old, my grandmother gave me a piece of Iceland Spar, it had belonged to my grandfather and she felt I ought to have it. This is the piece, my kids have it now, somewhere along the way it broke into three pieces while in storage. She showed me the…