Automated multi-sensor core loggers (MSCL) measure petrophysical properties of diamond drill cores, including gamma density, P-wave velocity, electrical conductivity and magnetic susceptibility. A Geotek MSCL system has been used to record petrophysical data on archival drill core from Cadia East Au-Cu porphyry deposit, New South Wales, Australia, for correlation with metallurgical parameters. P-wave modulus, calculated from density and P-wave velocity, exhibits a correlation with small-scale crushability (A*b) test results, and hence offers a means for continuous' characterisation of ore crushability at Cadia East. Magnetic susceptibility has proved to be a good indicator of alteration styles, and is a possible indicator of crushability._x000D_
FORMAL CITATION:Vatandoost, A and Fullagar, P, 2009._x000D_
Characterisation of ore crushability using petrophysical properties, in Proceedings Seventh International Mining Geology Conference 2009, pp 119-124 (The Australasian Institute of Mining and Metallurgy: Melbourne).