Siderite with Pyrite

Bodovalle Mine, Gallarta, Abanto y Ciérvana/Abanto Zierbena, Comarca Gran Bilbao, Vizcaya / Bizkaia, Basque Country (Euskadi)  Spain (1979)

Specimen size: 8.4 × 6.1 × 2.2 cm = 3.31” × 2.40” × 0.87”