Dolomite

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

Specimen size: 7.2 × 6.5 × 5.2 cm = 2.83” × 2.56” × 2.05”
Main crystal size: 4.2 × 3.5 cm = 1.65” × 1.38”