The thunder egg agate used to create this belt buckle was sourced from Oregon (USA). Marko hand-cuts the majority of the stones he acquires to retain the raw lines and natural shape of the stone. This particular spherulite was expertly hand-cut in Frankfurt. This polished thunder egg slice has a furrowed surface with a waxy luster that is pink and grey in hue. The stone is enveloped in a sterling silver setting that has been hand-hammered using the extremely rare medieval process of working from the ingot and then hammering it into shape. This is a labor intensive method of sculpting using only the pressure of percussion. The belt strap is reversible; one side is made from steel blue dyed whip snake and the other using bitter chocolate soft suede.