KOBE—Homeowners who notice small stones placed on the gate of their house may wonder if a bird picked them up and dropped ...

This central Japan city famed for its jade stones is set to ask people to refrain from taking the prized mineral formations ...

Kidney stones are pebble-sized deposits that form when there ... Sudden, intense pain is the hallmark of a kidney stone. See pictures of different types, the causes, symptoms, and treatments ...