Dolomite (twinned)

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

Specimen size: 7.9 × 7.3 × 5.7 cm = 3.11” × 2.87” × 2.24”
Main crystal size: 1.6 × 1.4 cm = 0.63” × 0.55”