在集安群变质岩薄片镜下复查过程中,见到大豺狼洞——赵家街地质剖面集安群新开河组原定名为透闪变粒岩的透闪石(剖面第21层,薄片号为Ⅵ″′—41、Ⅵ″′—41—1),实际上不是透闪石。其镜下特征:柱状变品,长轴直径约为1.5mm,长宽比约为1:1～1:2,横截面上见有两组斜交的角闪石式解理,二轴品,负光性,正延性,斜消光,2V>40°,中度突起,最高干涉色为一级紫红色,具鲜明的多色性:Ng——兰色,Nm——淡紫色,Np——极淡的 During the reexamination of the Ji’an group metamorphic rocks, we saw the tremolo of Datuang wolf cave-Zhaojiajie geological profile, , Sheet number Ⅵ “” - 41, Ⅵ "’- 41-1), in fact, is not tremolite. The microscopic features: columnar goods, long axis diameter of about 1.5mm, aspect ratio of about 1: 1 ~ 1: 2, cross-section see there are two groups of oblique amphibole cleavage, biaxial products , Negative light, positive ductility, oblique extinction, 2V> 40 °, moderate protrusion, the highest interference color is a purple, with distinct multicolor: Ng-- blue, Nm-- lavender, Np- - Very light