盐的密度低于周围的岩石，所以会向上抬升，使覆盖其上的岩层形成穹顶状。

Salt has lower density than the surrounding rock, so it tends to flow upwards, pushing up the overlying layers of rock to form a dome.

youdao

皂身的点状物是珍贵的古盐，容易受潮属正常现象，不影响品质，有益肌肤，请勿浪费。

The specks on the soap are precious ancient salt. It damps easily due to humidity, but this is natural and will not affect its quality. It is good for the skin so please do not waste it.

youdao