a dark, silvery stone

This stone is a perfect sphere, and has a smoothly polished surface covered
with silvery streaks. It is engraved with a small rune that has a shape
resembling a key.

It is a dark, silvery stone.
It radiates a magical aura.
It weighs about one pound.

You identify a dark, silvery stone.
It is an enchanted and unsellable object.
It weighs fourteen ounces.
Its keywords are stone, dark, silvery, and silvery-veined.