a square stone key

The key is carved from hard grey stone, and seems very sturdy. No intricate designs mar its smooth surface, only polished chisel cuts along the length of it. The square ends of the key are intriguing but unremarkable.

It is a square stone key.
It weighs about one pound.

You identify a square stone key.
It is an unsellable key.
It weighs fourteen ounces, and it is worth about two lauren.
Its keywords are key and square.