The determination of abrasivity is becoming more important as the economic requirements in mining and tunnelling are steadily increasing. Abrasivity is an important parameter for the selection of the tools and the drilling rate of tunnel boring machines as well as for the selection of mining machinery. There are various methods to determine the abrasivity of soil and rock. In this thesis, the geotechnical tests LCPC test, Cerchar test and the Los Angeles test are used to determine the parameters of abrasivity, breakability and fragmentation resistance for samples from the Erzberg. In addition, petrophysical tests will be performed on these samples to obtain the parameters porosity, compression- and shear wave velocities, bulk- and grain density. The aim is to prove existing correlations between the different parameters and to show possible connections. This series of tests is supplemented by mineralogical investigations in form of X-ray diffraction analyses. The influence of the mineralogical composition on the geotechnical - geophysical parameters will be analysed. For the abrasivity especially the quartz content is significant. To consider the abrasive effect of the remaining minerals, the equivalent quartz content (ÄQu) is calculated. The samples collected from the Erzberg are limestones, compact lime marbles and strongly slated phyllites. Special attention is paid to the phyllites, which show large variations in the results due to the anisotropy effect. The X-ray diffraction studies show that the influence of the minerals calcite, dolomite, muscovite and quartz must be considered in the petrophysical evaluation. This influence can be demonstrated especially by comparing the bulk and grain densities with the p-wave velocities and between the parameters porosity and Vp. The effect of anisotropy is expressed in form of increased compressional and shear wave velocities for the phyllite and marble samples. The correlations between the geotechnical parameters described in the literature (LCPC abrasivity coefficient, refractivity index, LA coefficient, Cerchar abrasivity index, equivalent quartz content) can be widely verified.