| 1. | Based on the crystal structure of astrophyllite , we examined the infrared spectra of monoclinic and triclinic astrophyllites , contrast the infrared spectral features of both astrophyllite minerals , and discuss the assignments of infrared absorption frequencies 在新测定的星叶石晶体结构资料的基础上,对星叶石矿物进行了详细的红外光谱研究,对比了单斜及三斜星叶石的红外光谱特征,并对星叶石中红外吸收振动频率的归属问题进行了讨论。 |