Does anyone have any info on the use of quartz on modern graves? I'm not sure if its practiced anywhere else but in Ireland its somewhat traditional to have a layer of quartz covering graves yet I can't find any info on how far the tradition goes back or if its a modern fad. I was just pondering the link with ancient cairns reputed to be covered in quartz and where all this quartz might have gone over the millenia. Could it be a lingering traditional association with the passing of the dead or just something that looks nice with some flowers on top? Was the quartz taken from ancient sites and spread on graves to provide a link with the sacred??

Any info or thoughts greatly appreciated.