Fireplace
So, what if instead of making the chimney demarkation outdented in stacked stone, it was indented into the wall? Then, the hearth is naturally just a planar piece of thick and natural wood to offset the harshness of the stone but blend the naturalness. The side insets could remain for ornamental wood stacks and tools or whatever. The three make the trinity, too. Note lighting as well as an easily added mantle. This could be it.
...in another room
Epic of traditionalism.
Q