Dolomite (twinned)

Asturreta Quarry, 'el pozo', Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1970)

Specimen size: 8 × 6.9 × 4.3 cm = 3.15” × 2.72” × 1.69”