Original paper
Li-bearing tosudite from the Bubsoo mine, Korea
Hyen, Goo Cho; Soo, Jin Kim
Neues Jahrbuch für Mineralogie - Monatshefte Jg. 1994 Heft 3 (1994), p. 130 - 137
28 references
published: Mar 15, 1994
DOI: 10.1127/njmm/1994/1994/130
ArtNo. ESP156199403005, Price: 19.00 €
Abstract
Mineralogical characteristics of Li-bearing tosudite from the Bubsoo mine, Korea was studied using X-ray diffraction analysis, chemical analysis and electron microscopy. Tosudite occurs as cryptocrystalline flaky aggregates in the alteration zone of Cretaceous Juwangsan volcanoclastic rocks in the Bubsoo mine. It coexists with microcrystalline quartz, dickite and interstratified mica/smectite in the inner alteration zone. XRD and chemical analyses suggest that the tosudite is an 1:1 regular interstratification of Li-bearing donbassite and beidellite. It contains 0.44 wt. % of Li2O. Potassium is the main interlayer cation. The Li-bearing tosudite might have been formed from the hydrothermal solution having high activities of Si and Li, but low activity of K under relatively high temperature.
Keywords
Tosudite • Bubsoo mine (Korea) • beidellite • Li-bearing donbassite • interstratified mica/smectite • hydrothermal solution