** Shares of Impact Minerals IPT.AX fall 12.5% to A$0.007, its biggest intraday pct loss since July 21
** Stock hits their lowest level since July 23
** Diversified miner receives firm commitment to raise A$4 million ($2.63 million) via placement
** Issue price of A$0.0065 per share represents a discount of ~18% to last close on Sept 18
** Says funds will be used to support ongoing High Purity Alumina ventures at the Lake Hope Project in WA, others
** About 13.5 mln shares traded, more than 5x the 30-day average
** YTD stock down 25.9%, including current session's move
($1 = 1.5188 Australian dollars)
(Reporting by Ananya Verma in Bengaluru)
((ananya.verma@thomsonreuters.com;))