Info:
Pendant approx. 43 mm high, including the hanging loop.
Stone in setting; approx. 34x24 mm.
Soldered oval hanging loop, inner dimensions: approx. 3.6x5.8 mm
Bergslag slag, or slag stone, is a byproduct of iron production in blast furnaces and smelting houses. It was formed when iron ore was smelted with charcoal, and the blue hue results from slow cooling, which creates a glass-like, iridescent structure. Cobalt and chromium produce the blue hues.