MF27AL7: Very well defined dodecahedral crystals, one of them clearly dominant, lustrous, brown with reddish tones. The crystals, on a Muscovite-rich metamorphic rock matrix, contrary to common practice, are neither glued nor do they have their faces retouched or polished, preserving the natural surface. It is an old piece and comes from the José Navarrete collection.
Ziller Valley (Zillertal), North Tyrol, Tyrol/Tirol  Austria

Specimen size: 10.4 × 6.1 × 4.8 cm = 4.09” × 2.40” × 1.89”

Main crystal size: 6 × 5.4 cm = 2.36” × 2.13”