Millerite, Dolomite - Zollverein, Stoppenberg, Essen, North Rhine-Westphalia, Germany
 Formerly Jürgen Krawietz Collection, via Christian Weise 1983.
 Countless millerite needles on dolomite.
 Here we have an outstanding specimen of hair-like, brass-yellow millerite from the Zollverein coal mine in Essen. The wafer-thin, needle-like crystals sit on lustrous dolomite with chalcopyrite on the matrix.
 Rare collector's item from a classic German site.