Sinter formation of aragonite and calcite in alternating layers of darker and lighter – to marble white material .
Beautiful pieces have been used to make art objects, clocks and ornaments in the past.
Old example – cut and polished on one side.
Styrian Ore Mountain – Eisenerz – Styria – Austria
Weight: 522 g
Dim.: 11,5 x 9,5 x 6 cm
The last picture is the natural side.