But these types of stone are quite different in almost every regard, including their origin, appearance, and utility. Crushed ...

Bone fish hooks were ground until sharp on a stone like this. What do you think needles and fish hooks were made of after the Europeans arrived? Can you think why the people would adopt the new ...

Stone fruit (also known as a drupe ... but you may also find a few different varieties floating around. Donut peaches are ...

Sudden, intense pain is the hallmark of a kidney stone. See pictures of different types, the causes, symptoms, and treatments in this WebMD slideshow. Your kidneys do a lot for you. But are you ...