“…Obsidian, andesites and basalts sourcing, has been a mainstay in provenance studies (Jones et al, 1997), but recent attempts to source steatite or soapstone (Allen et al, 1975;Ige and Swanson, 2008), and even trees (Durand et al, 1999) have shown that these lines of inquiry can be quite informative. Despite success in many areas worldwide with sourcing pottery (Bishop et al, 1988;Lynott et al, 2000), this avenue of research has been virtually ignored by Nigerian archaeologists. A recent pilot project in the Igbomina area of the northern part of Yorubaland using instrumental neutron activation analysis (INAA) (Usman et al, 2005a,b) is a significant contribution to the characterization of these objects.…”