Dolomite

Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (2002)

Specimen size: 5.3 × 3.4 × 3.1 cm = 2.09” × 1.34” × 1.22”
Main crystal size: 2.1 × 2.1 cm = 0.83” × 0.83”