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红帘石的光性及谱学研究
OPTICAL PROPERTIES AND SPECTROSCOPY OF PIEMONTITE
【摘要】 <正> 红帘石是一种富含Mn3+的绿帘石,它与绿帘石和斜黝帘石为等构造矿物,空间群为P21/m,它们的结构式分别为: 斜黝帘石 Ca2Al3O[SiO4][Si2O7][OH], 绿帘石 Ca2(Al,Fe)Al2O[SiO4][Si2O7][OH], 红帘石 Ca2(Al,Fe,Mn)2AlO[SiO4][Si2O7][OH]。
【Abstract】 The number of(Fe3++Mn3+)in unit formula of piemontite from the Hainan Island is characteristically greater than 1 with Fe exceeding Mn in amount. Appreciable ordering is confirmed with respect to major ions, such as Fe3+ and Mn3+ in the crystal structure of plemontite through electron paramagnetic resonance,infrared,Mssbauer,polarized absorption spectra measurements, which accounts for the pleochroism of this mineral and the stability of Mn3+ ions in its structure.
- 【文献出处】 矿物学报 ,Acta Mineralogica Sinica , 编辑部邮箱 ,1981年03期
- 【被引频次】9
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