搜索结果: 1-2 共查到“矿床学与矿相学 Iron-Rich Saponite”相关记录2条 . 查询时间(0.122 秒)
Hisingerite Occurring as a Weathering Product of Iron-Rich Saponite
Hisingerite Occurring Iron-Rich Saponite
2012/2/14
Hisingerite occurs as a weathering product of iron-rich saponite in rhyolitic tuff of Oya, Tochigi Prefecture. The chemical composition: SiO2, 40·68%; Al2O3, 4·44%; Fe2O3, 28·54%; MgO, 1·85%; CaO, 1·4...
Clayey fragments colored deep bluish-green are widely found in glassy rhyolitic tuffs at Oya, Tochigi Prefecture. In room-air the color changes to black or gray within one hour and finally to brown in...
