Because hardly any charcoal is found in the lime burial of Cova de sa Prior as well as in many other lime burials on the Balearic islands, the question was raised if the cremation ritual was performed on site or not . Samples of the lime conglomerate and lime lumps were compared with limestone from the cave itself as well as from the area around the cave. Thin-section petrography of the lime conglomerate and lumps gave no relevant information about the provenance of the limestone used for the cremation rite, but preserved structures of the source rock found in an incompletely burned limestone fragment showed that most probably the limestone comes from the direct vicinity of the cave or even from within the cave itself.