- Článek:Beryl-columbitový pegmatit Věžná I (2020/1)Toman, J., Novák, M., 2020: Beryl-columbitový pegmatit Věžná I. – Acta Mus. Morav., Sci. Geol., 105, 1, 3–42 (with English summary)Beryl-columbite pegmatite Věžná I The beryl-columbite subtype Věžná I pegmatite has been subject of numerous scientific studies particularly from Petr Černý. It penetrates serpentinite and has a very complicated mineralogical evolution including several stages of crystallization.…Článek v PDF