Many medical conditions can affect the normal balance and cause stones to form.

Huge stones formed great walls, leading up to the front entrance.

They threw the rocks behind their shoulders and the stones formed people.

But in up to half of patients, more stones formed and symptoms recurred.

Within were three or four large stones, forming a kind of seat with a back and footstool.

The ceiling is decorated with stones forming eight pointed stars.

The purpose is to dilute the urine so that no additional stones would form.

If someone asked you where stones can form in the human body, you might immediately think of the kidneys.

The stones formed a circle of silence about him.

When seen at an angle from one side, the stones form a three-dimensional "101" (see picture).