Quartz

Outcrops of Quartz veins from Alkiza, Anoeta-Alkiza road, Alkiza, Comarca Tolosaldea, Guipúzcoa / Gipuzkoa, Basque Country (Euskadi)  Spain (1992)

Specimen size: 8.2 × 6.6 × 4.8 cm = 3.23” × 2.60” × 1.89”
Main crystal size: 3.9 × 0.6 cm = 1.54” × 0.24”