NA67AL5: Group of complex Calcite crystals with the dominant scalenohedral shape, some of them doubly terminated. Brown in color due to Chalcophanite inclusions.
This specimen comes from the Miguel David Martínez collection (no. 615), 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: 12.6 × 8.2 × 6.3 cm = 4.96” × 3.23” × 2.48”

Main crystal size: 4.3 × 1.7 cm = 1.69” × 0.67”