RE:A mind twister...?
Wonder if the New Zealand rocks Are similar Oceana Ltd. Time to dive into your data bgf! Asbestos knows all about the Rutile the Hyde-Macraes Shear Zone rocks have been hydrothermally altered to some extent, although the effects are subtle. The most intense alteration involving pyrite, arsenopyrite, graphite and gold is described above (Fig 11,Fig 12,Fig 13,Fig 14). In addition, all rocks have had alteration of titanite (CaTiSiO5) to rutile (TiO2)