Dolomite (twinned)

Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1982)

Specimen size: 9.3 × 6.6 × 3.5 cm = 3.66” × 2.60” × 1.38”
Main crystal size: 2.3 × 2.1 cm = 0.91” × 0.83”