The granite vein which width is about 0.5m filled in banded amphibole-gneiss along the tension crack. The milk-white vein strides over ghyll like a white dragon crossing river.

花脉，走向45°，宽0.5米，沿张节理充填条带角闪斜长片麻中,乳白色脉流，犹如白龙江。