noun
crystalline schist
Geological term for a metamorphic rock with a well-developed schistosity, composed mainly of crystalline minerals.
この地域の地質は主に結晶片岩からなる。
The geology of this area consists mainly of crystalline schist.
Compound of 結晶 (kesshō, 'crystal') and 片岩 (hengan, 'schist'), a direct calque of the English term 'crystalline schist'.