Published Online: 1 April 1981
Page Count: 9
Senior scientific officer, The Metropolitan Police Forensic Science Lab, London,
(Received 11 August 1980; accepted 3 September 1980)
X-ray powder diffraction provides useful discrimination between brass specimens that occur as contact traces. Phases are identified and under favorable circumstances may be quantified. The copper/zinc ratio within a single-phase brass can be estimated with ease to ±1%.
Paper ID: JFS11367J