Info:
Pendant approx. 51 mm high.
Movable loop, inner width approx. 5 mm
Slag approx. 22 mm
Mining slag, or slag stone, is a byproduct of iron production in blast furnaces and smelting furnaces. 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 are responsible for the blue hues.