Datolite with Quartz

Ofitas de Rigoitia Quarry, Memorikas, Errigoiti, Comarca Busturialdea-Urdaibai, Vizcaya / Bizkaia, Basque Country (Euskadi)  Spain (1991)

Specimen size: 10.8 × 6.5 × 4.6 cm = 4.25” × 2.56” × 1.81”
Main crystal size: 3.3 × 2.6 cm = 1.30” × 1.02”