Lenses of braunite ore within brecciated rhyolites.
Ref:
Smol'yaninova, V.N., Borisovskii, S.E. (1984) Pyrophanite in manganese ores of Prozrachnoe deposit (Gornyi Altai), - Izvestiya AN SSSR, seriya geologicheskaya, N9, p. 131-136 (in Russian).
Smol'yaninova, V.N., Borisovskii, S.E. (1986) Tilazite in manganese ores of Gornyi Altai, - Izvestiya AN SSSR, seriya geologicheskaya, N6, p. 121-124 (in Russian).
Smol'yaninova, V.N., Borisovskii, S.E. (1988) Manganorthite in manganese ores of Gornyi Altai, - Izvestiya AN SSSR, seriya geologicheskaya, N, p. (in Russian). - here was presented description of mineral, which recently was named uedaite-(Ce) and its La-dominant analogue.
