n. roscoelite
本文介绍用氧化钙化焙烧法从钒云母矿中提取钒的试验研究，对焙烧、浸出、净化、沉钒过程中各影响因素进行了探讨。
Experimentation of extraction of V from vanadium mica is reportedl; influential factors such as roasting, leaching, purification and V precipitation are investigated.
水云母是钒的主要赋存体，钒是以类质同象的形式产于水云母的晶格中。
Navajoite is as isomorphism hosting in the lattice of hydromica which is the major hosting ore for navajoite.
结果表明，钒在石煤中主要富集在云母类矿物中。
The results show that the vanadium in stone coal is almost completely to be located or implanted inside mica mineral.
钒云母（ roscoelite in sandstone），其组成与结构为KV2[ AISi3O10]（OH）2。类质同象混入物有Mg. 、Cr.、Fe2+、 Fe3+等，湖北产出的钒云母含SiO2 48. 05%，TiO2 0.38%，Al2PO3 15. 00%，V2O3 14. 62%，Cr2O3 1.56%，Fe2O3 0.56%，MgO 4.32%，CaO 0.34%，BaO1. 28%，K2O 6.19%，Na2O 0.13%，P2O5 0.13%，F 0.05%，H2O 5.44%，总计98. 33 %。钒云母属单斜晶系。钒云母大部分晶体呈亮绿色细纤维状，少数成片状
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