Please clarify "pierre" as in "stone(s)"

Just to check that I have understood your query properly, Di -

Although the word pierre can be a stone or a man's name, it all has to do with the use of capital letters.

So as Pierre in the French text has a capital letter it can only be -

Although I do concede that if it was a listening task there could be confusion in the meaning between -

I admire Pierre's collection

and

I admire the stones' collection 

What do you think ?