Slight lodestone change

This is a pretty simple idea. Surrounding a lodestone in certain blocks should make all its compasses point away from it instead. I think the block should either be crying obsidian (if you want another use and a more mystical aspect) or iron (for a more scientific aspect with magnetism). It should have to be encased in a 3x3x3 of the block. This would give the ability to confuse travelers as now that its inverted if you move in a non-straight line it wont point to a single point like a compass should. This would still allow players to determine their location if they are aware its inverted.