** Shares of London-listed gold miners jump after prices of the yellow metal briefly broke above $3,500 per ounce to an all-time high on Tuesday after U.S. President Donald Trump criticised Federal Reserve Chair Jerome Powell, increasing demand for the safe-haven asset
** Mexico-focused Fresnillo FRES.L gains 2.3% to 1,044p; stock among top pct gainers on blue-chip FTSE 100 .FTSE index
** Hochschild Mining HOCM.L, which has significant gold mining operations in South America, up 4.5% to be the top pct gainer on FTSE 250 .FTMC index
** AIM-listed Caledonia Mining CALq.L up 3.8%
** Australia-focused Greatland Gold GGPL.L gains 7.7%; Resolute Mining RSGR.L rises 9.2%
** GoldStone Resources GRL.L, which develops a key project in Ghana, up 6.5%
(Reporting by Aby Jose Koilparambil in Bengaluru)
((abyjose.koilparambil@thomsonreuters.com))