摘要
对我国几个主要类型叶蜡石矿的叶蜡石做了X射线粉晶衍射研究。从大量实验结果发现,所研究叶蜡石存在单斜晶系和三斜晶系两种多型。单斜晶系(2M);空间群G_(2h)~6-C2/c,a=5.175A,b=8.902A,c=18.673A,β=100.1°,Z=4;三斜晶系(1Tc):空间群P_c,a=5.162A,b=8.965A,c=9.346A,a=91.2°,β=99.96°,γ=89.91°,Z=2。
X-ray diffraction studies of prophyllite from some major types of proph-yllite deposits in China were conducted. A great wealth of experimental datashow that there exist two polymophs of prophyllite, i. e., monoclinic and tric-linic. The monoclinic prophyllite (2M) has a space group of C_(2h)~6-C2/c with α=5.175A, b=8.902A, c=18.673A, β=100. 1°, Z=4; while the triclinic proph-yllite (1Tc) has a space group of P_1^- with α=5.162A, b=8.965A, c=9.346A,α=91.2°, β=99.96°, γ=89.91°, Z=2.
出处
《矿物学报》
CAS
CSCD
北大核心
1989年第4期378-382,共5页
Acta Mineralogica Sinica
关键词
叶蜡石
晶体结构
X射线
衍射分析
prophyllite
X-ray diffraction analysis
crystal structure
