The burying of white stones or lumps of quartz with the dead was not infrequent in early times in Ireland. The peasants of the north of Ireland call these Godstones. A cist found at Barnasraghy, County Sligo, was nearly filled with quartz pebbles, and not long since a white stone was found in a primitive burial place near Larne, County Antrim. That this was a usage confined to the earlier period of Irish history is generally admitted, and the discovery of such white stones in a grave is accepted as an indication that it belongs to an early date.[39] It has been suggested that these white stones were used for burials because of the symbolic meaning of the color, which to the minds of many primitive peoples was that of purity, as indeed it is still among most modern peoples, although the symbolism may not always be consciously accepted. White marble seems to most of us the most appropriate and beautiful stone for monuments, and if to a very considerable degree granite is now used as a substitute, this is principally because of its greater resistance to the deteriorating effect of atmospheric changes. Already in prehistoric times, the cave-dwellers showed a fondness for gathering quartz crystals and fragments, and specimens of those taken from the Auvergne Mountains have been found in the cave-dwellings of Les Eyzies; they may have been used as amulets or talismans.[40] A legend of the great Irish saint, Columba, gives an instance of the curative use of white pebbles. After this saint had vainly entreated Broichan the Druid to free a Christian bond-maiden, as a last resort he menaced the druid with approaching death. The prediction or curse was speedily on the way to fulfilment, Broichan sickened unto death, and in his terror consented to free the maiden. Hereupon St. Columba went to the river Ness and picked up out of its shallows several white pebbles, announcing that they would, by the Lord’s power, work the cure of heathen people. One of the stones was blessed by the saint and placed in a vessel filled with water, on the surface of which it floated, and as soon as Broichan had taken a draught of the liquid he was restored to perfect health.[41]