Found in the contact zone of the shale rock, but also common in crystalline schist.

见于接触带的泥质岩石中，也常见于结晶片岩中。

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Found in the contact zone of the shale rock, but also common in crystalline schist.

见于接触带的泥质岩石中，也常见于结晶片岩中。

youdao