
Shares of Black Bear Minerals BKB.AX rise as much as 6.9% to A$0.64, posting their biggest intraday pct gain since early October
Stock hits highest level since November 18
Speciality miner says sampling results show high-grade silver mineralisation at its Shafter project in Texas, U.S.
Says results also flag multi-commodity potential including zinc, lead and gold
More than 1.4 million shares change hands, 2 times the 30-day average
Stock flat YTD, including the day's moves