Calcite

Bodovalle Mine, Gallarta, Abanto y Ciérvana/Abanto Zierbena, Comarca Gran Bilbao, Vizcaya / Bizkaia, Basque Country (Euskadi)  Spain (±1966)

Specimen size: 9.8 × 7 × 3.7 cm = 3.86” × 2.76” × 1.46”
Main crystal size: 2 × 1.6 cm = 0.79” × 0.63”