Navazales II Quarries, La Cabrera pluton, Valdemanco - Bustarviejo - Cabanillas de la Sierra - Navalafuente, Comarca Sierra Norte, Community of Madrid Spain (1998)
Specimen size: 7.4 × 4.2 × 3 cm = 2.91” × 1.65” × 1.18” Main crystal size: 2 × 0.3 cm = 0.79” × 0.12”