Datolite with Quartz

Ofitas de Rigoitia Quarry, Memorikas, Errigoiti, Comarca Busturialdea-Urdaibai, Vizcaya / Bizkaia, Basque Country (Euskadi)  Spain

Specimen size: 5.6 × 4.2 × 4.2 cm = 2.20” × 1.65” × 1.65”
Main crystal size: 4 × 3.6 cm = 1.57” × 1.42”