* FTSE 100 down 0.3 pct
* GKN tumbles after profit warning
* Miners' rally brings support
* Provident Financial jumps over 12 pct (Adds closing prics)
LONDON, Oct 13 (Reuters) - Britain's major share index ended Friday within touching distance of the previous session's record close, boosted by a late rally in mining stocks but dragged down by gains in the pound and a profit warning from engineering group GKN.
The FTSE 100 was down 0.28 percent at 7,535.44 points as Britain's pound rose to an 11-day high. Sterling benefited from a dollar weakened by U.S. inflation data and new- found optimism on the outcome of Brexit negotiations.
The pound, whose plunge after the Brexit vote helped dollar earners on the index, has become the main gauge of how talks are progressing on Britain's separation from the European Union.
Mining companies, which are predominantly dollar-earning constituents of the FTSE 100, provided some support to the index. Rio Tinto rose 3.3 percent,Glencore 2.7 percent and Anglo American 1.8 percent.
Sub-prime lender Provident Financial shone among mid-caps, soaring 12.4 percent to a six-week high after it said it had implemented a recovery plan for its troubled home credit business. The stock has plummeted around 70 percent this year .
Shares in emerging markets-focused manager Ashmore jumped 7.1 percent after it reported its highest net inflows of client money for four years. Strong performances in emerging markets drew investors into the asset class.
Hedge fund Man Group rose 3.4 percent to a two-year high. Assets in its long-only stock-picking unit gained 11 percent; $600 million flowed into emerging market debt strategies.
The top loser of the session was engineering group GKN , which sank 9.8 percent after it warned that weaker trading in aerospace would cause full-year profit to miss expectations.
"As anticipated, aerospace has seen a significant reduction in margin caused by pricing pressures, continuing operational challenges and the impact of programme transitions," analysts at Panmure Gordon said.
(Reporting by Helen Reid and Julien Ponthus; Editing by Larry King)