Molybdenite from Zinnwald, Zinnwald-Georgenfeld, Altenberg, Sächsische Schweiz-Osterzgebirge, Saxony, Germany

Specimen pieces of Molybdenite from Zinnwald,  a well known mining region in the 'Ore Mountains' of Germany.

Molybdenite is a soft and malleable metallic mineral which is the principal ore of Molybdenum, an element which is used in various steel alloys.