** Shares of Alvo Minerals ALV.AX rise as much as 17.3% to A$0.061, their highest level since November 24

** Critical mineral explorer says it has found copper and zinc sulphide reserves at its Touro prospect target within the Palma copper-zinc project in central Brazil

** About 12.3 million shares change hands, 3x the 30-day average

** Stock last up 3.9%, with YTD gains at 42.7%

(Reporting by Aamir Sheik Khalid in Bengaluru)

((Aamir.SheikKhalid@thomsonreuters.com))