Attractive specimen of twinned Marcasite with Calcite from Linwood Mine, Scott Co., Iowa, USA. It displays sharp, metallic Marcasite crystals with a strong luster. They are symmetrically twinned. In addition the Marcasites are crystallized in a cluster forming beautiful spears. It is slightly iridescent. It shows attractively all around 360 degree. In superb condition. On acrylic base.

Cool!