- Hofman vein north, Alexander mine, Vrancice near Pribram, Central Bohemia, Czech Republic
- Miniature, 5.5 x 4.5 x 4.5 cm
- Ex. Josef Vajdak
An excellent representation of montroseite with dramatic presentation! Dark gray-black, prismatic, lustrous crystals of montroseite to 4 mm lining box-work structure and richly distributed in a quartz carbonate vein. These are very large crystals for this multi-valent vanadium oxy-hydroxide!