Crystalline schist is a general term for regional metamorphic rocks with directional structure, such as phyllite, schist, gneiss, granulite, etc. But sometimes it generally refers to all regional metamorphic rocks, regardless of whether they have obvious directional structures. [1]
- Chinese name
- Crystalline schist
- Foreign name
- crystalline schist
Green schist is the general name of green to dark green regional metamorphic rocks with schistose texture, which are generally basic to neutral volcano The rock is the product of low to medium low degree metamorphism, consisting of mineral More than half of them are chlorite, and the other half are quartz, epidote, zoisite, mica and calcite. The mineral particles are fine to medium. The schistose minerals such as chlorite are often arranged along a specific direction, so they have good schistosity. The metamorphic degree of schist is higher than that of slate. The originally fine minerals form coarse particles due to recrystallization. The schist minerals and granular minerals gradually concentrate to form alternating deep and shallow, parallel curvilinear stripes, in which white stripes sometimes appear, mostly from calcite 、 quartz and plagioclase form. 
Crystalline schist
Crystalline schist
