Winchite from Mt.Hiei contact aureole, Kyoto, Japan
Access this Article
Search this Article
Sodic-calcic amphibole closely associated with aegirine-augite was newly found from a sandy hornfels at Mt. Hiei contact aureole, Kyoto, Japan. The amphibole shows a pleochroism of X=colorless, Y=blue and Z=light blue and is winchite with significant amounts of TiO<sub>2</sub> (1.5-2.5 wt.%) and of Mg-Fe-Mn-Li amphibole component at B site (ca. 0.1-0.4 cations for O=23 basis). The chemical composition and the coexisting phases of the winchite in this study are similar to those in the alkaline igneous complex.
- Journal of Mineralogical and Petrological Sciences
Journal of Mineralogical and Petrological Sciences 95(6), 107-112, 2000-08
Japan Association of Mineralogical Sciences