Dolomite (twinned)

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

Specimen size: 14.5 × 11.8 × 6.8 cm = 5.71” × 4.65” × 2.68”
Main crystal size: 5.5 × 3 cm = 2.17” × 1.18”