英语语法分析

The main minerals are plagioclase, zoisite, hornblende, and the minor minerals were mica, sphene, prehnite and so on.

主要组成矿物有斜长石、黝帘石、角闪石、另有云母类矿物、榍石、葡萄石等次要矿物。

Hornblende is black, dark green, sometimes brown.

普通角闪石多呈黑色、暗绿色，有时为褐色。

Biotite (hornblende) two-feldspar gneiss and (5) Fault br.

黑云(角闪)二长片麻岩和(5)碎裂岩等。