Navazales II Quarries, La Cabrera pluton, Valdemanco - Bustarviejo - Cabanillas de la Sierra - Navalafuente, Comarca Sierra Norte, Community of Madrid Spain (02/2001)
Specimen size: 10 × 7.4 × 6.8 cm = 3.94” × 2.91” × 2.68” Main crystal size: 8.7 × 5.6 cm = 3.43” × 2.20”