Mineral: Malachite
Locality: Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Altenkirchen (Westerwald), Siegerland, Rhineland-Palatinate/Rheinland-Pfalz, Germany
Dimensions: 10 x 9 cm

Description: With Bergrat Heusler label around 1840

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