Dolomite on Quartz and Chalcopyrite

Eupel Mine, Niederhövels, Wissen, Flammersfeld, Altenkirchen (Westerwald), Siegerland, Rhineland-Palatinate/Rheinland-Pfalz  Germany

Specimen size: 17.8 × 10.2 × 4.4 cm = 7.01” × 4.02” × 1.73”
Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”