MADRID (MarketWatch) -- European stock markets were trading slightly firmer on Friday, underpinned by a string of upbeat China data, chiefly a pickup in economic growth. Investors were also conscious of downbeat prior-day earnings from Intel Corp. , with General Electric Co. and Morgan Stanley results ahead on Friday. The Stoxx Europe 600 index rose 0.1% to 287.72, driven chiefly by gains for mining stocks, which are sensitive to news out of China. Shares of Rio Tinto PLC rose 1.5%, rebounding from prior day losses. The FTSE 100 index rose 0.2% to 6,141.13. The German DAX 30 index rose ... Read More