NJ48AL7: Druse of complex Calcite crystals very rich in faces with clear predominance of the scalenohedron. Of an uniform grey-brown color due to inclusions of Chalcophanite, which also forms the matrix.
The specimen comes from the Miguel David Martínez collection (nº. 614), whose label we will send to the buyer.
Herculano Mine, El Puntal, Campos de Golf, Atamaría, Cartagena, Comarca Campo de Cartagena, Region of Murcia (Murcia)  Spain (2019)

Specimen size: 9 × 8.9 × 6.5 cm = 3.54” × 3.50” × 2.56”

Main crystal size: 2.3 × 1.9 cm = 0.91” × 0.75”