摘要
1980年在河北曲阳县某碱性伟晶岩中发现一种含Y、Ce、Ca、Al为主的硼硅酸盐矿物。经光性及其它物性的测定、化学分析、X射线单晶及粉晶分析、红外光谱分析确定是在我国首次发现的硼硅钇钙石(hellandite)、空间群为P2/a,晶胞参数a=18.827×10^(-10)m;b=4.694;c=10.257;β=111.7°;单位晶胞分子式:(Ca,Y,RE)_(12)(Al,Fe^(3+))_(2)(OH)_(4)[Si_(8)(B,Be)_(8)O_(40)(OH)_(4)]。
Hellandite is a rare mineral which has been not reported in the Chinese literature.It was found in an alkaline pegmatite in 1980 from Quyang,Hebei Province,Chana.It associates with albite,quartz,magnetite,zircon,apatite,fergusonite,pyrochlore and gadolinite,etc.
作者
马仁宽
张建洪
杨凤华
Ma Renkuan;Zhang Jianhong;Yang Fenghua(Phosphorus Prospecting Team,Bureau of Geology and Mineral Resources of Hebei Province;Beijing Graduate School,Wuhan College of Geology)
出处
《地质学报》
1986年第1期68-77,共10页
Acta Geologica Sinica
