Malachite and galena, many small fragments. From Naqada Cemetery T Tomb 5. Sample of galena taken for analysis by Dr. M.H. Gale, Oxford, 1978. Lead isotope result: 208pb/206pb 207pb/206pb 206pb/204pb 2.00578 0.80185 19.5163. Neutron Activation result: Cu. 72. 78, Au. .5799, As. 18.89, Sb. 12.00, Ag. 14.43
- Baumgartel, Elise Jenny, Naqada supplement, p. LXVII - Petrie, William Matthew Flinders, Naqada and Ballas: 1895 - Gale, Noel H., Sources of Galena, Lead and Silver in Predynastic Egypt
