Drysdale has a high-grade zone more than 1.4km long. It has produced high TREO results, with some samples at around 1% TREO, averaging 0.28% TREO. HREOs and Yttrium Oxide make up around 16.8% of the TREO, with Niobium grades of 1.7%, Tantalum 0.08% and Zirconium 3.17%.