Dolomite

Azcárate Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1998)

Specimen size: 10.4 × 9.7 × 9 cm = 4.09” × 3.82” × 3.54”
Main crystal size: 7.5 × 5.4 cm = 2.95” × 2.13”