** Shares of Enova Mining ENV.AX fall as much as 20% to
A$0.012, their biggest intraday decline since Aug. 1
** Rare earth metals explorer reports a half-year loss after
tax of A$6.1 million ($4.10 million) vs a loss of A$120,000
last year
** About 13 mln shares change hands, compared with the
30-day average volume of around 3.1 mln
** Stock down 20% YTD, including session's move
($1 = 1.4861 Australian dollars)
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))