Smoky Quartz
cairngorm — the highlander’s stone
The smoke is real time: natural radiation from the surrounding rock, working on trace aluminium over millions of years. Scotland made it a national gem — highlanders set cairngorm in dagger hilts and kilt brooches so the mountain could travel with them. It is quartz with the lights lowered.
“Set in the dagger’s hilt, that the mountain might travel with the man.”Scottish lore · the cairngorm