浙江省普陀山朱家尖产出的条纹长石,系何作霖先生1928年赴浙东调查时所采集者,共有关成分及结构等情况已详见前中央研究院地质研究所丛刊第四号 The Anor-thoclase Perthite from Chu Chia Tsien Island near Putoshan,Cheking.文内。条纹长石生於花岗岩的气穴里,呈晶簇状,晶体形状如图一所示,常常具有贝文欧双晶(Baveno Striped feldspar produced by Zhujiajian in Mount Putuo in Zhejiang Province was collected by Mr. He Zuolin during his investigation in eastern Zhejiang in 1928. The relevant composition and structure have been found in the fourth issue of The Geological Institute of the former Academia Sinica No. 4 Anor-thoclase Perthite from Chu Chia Tsien Island near Putoshan, Cheking. Striped feldspar was born in the granite pits, was crystal-like, the crystal shape shown in Figure 1, often with Beiwo Ou Bian (Baveno