IRIS Metals Ltd (ASX:IR1) saw its share price move up nearly 10% as it reported the best intercept to date at its Beecher lithium project in South Dakota, based on ongoing program of diamond drilling. The intercept – which measured 75.1 metres at 1.41% Li2O (lithium oxide) from 25.1 metres – underlined the presence of wide zones of high-grade lithium mineralisation at the project, with significant intersections shown in four holes from the 14 overall reported. This included 56.7 metres at 1.43% Li2O from 40.4 metres, including: 3.8 metres at 2.63% Li2O from 40.4 metres, 2.6 metres at 1.90% Li2…