** Shares of Australia's ABx Group ABX.AX rise as much as 39.4% to A$0.092, their highest level since September 17; stock last up 21.1%
** Biggest intraday pct rise since September 3
** Rare-earths explorer says excellent impurity removal results were reported by Australia's Nuclear Science and Technology Organisation on the bulk sample from co's Deep Leads ionic adsorption clay rare earth project
** About 15.4 million shares change hands, 4.7 times the 30-day avg
** Stock is up 100% YTD, including the session's moves
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))