Twinned Dolomite

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

Specimen size: 16.6 × 14 × 6 cm = 6.54” × 5.51” × 2.36”
Main crystal size: 7.4 × 6.7 cm = 2.91” × 2.64”