Stokesite on Microcline with Albite

Isabel Quarry (La Saludadora Quarry), La Cabrera pluton, Valdemanco, Comarca Sierra de Guadarrama, Community of Madrid  Spain (1999)

Specimen size: 1 × 0.8 × 1 cm = 0.39” × 0.31” × 0.39”
Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”