“Reference: PD89AM7 Dendritic growths of very elongated Silver crystals, well defined, bright, and partially covered by groups and small isolated crystals of darker Acanthite, on a massive Calcite matrix. The best possible quality for the locality. Balcoll Mine, Falset, Comarca Priorat, Tarragona, Catalonia  Spain (11/2004) Specimen size: 5.2 × 3.7 × 5.2 cm = 2.05” × 1.46” × 2.05” ”