(Corrects first percent reference in para 2 to points)
LONDON, Jan 16 (Reuters) - Britain's top share index fell back on Wednesday, testing a key technical support level, weighed by weak miners with Anglo American the leading faller as one of its mines is hit by a strike.
At 0816 GMT, the FTSE 100 index was down 14.83 points, or 0.2 percent at 6,102.48. Traders said a close below the index's 2011 high at around 6,100 would signal waning buying momentum and may mark the start of a pullback for the index.
Anglo American shares shed 3.4 percent after workers at South Africa's Rustenburg operations refused to go underground in a protest at company plans to close mines. (Reporting By Francesco Canepa)