PRECIOUS-Gold rises slightly on U.S.-China tensions, gloomy economic outlook

Gold prices inched up on Tuesday, supported by strained Sino-U.S. relations and a dismal global economic outlook, although positive news from an early-stage trial for a coronavirus vaccine spurred some risk appetite and capped the metal's gains. FUNDAMENTALS * Spot gold was up 0.2% at $1,735.04 per ounce by 0042 GMT. U.S. gold futures gained 0.2% to $1,737.10. * On Monday, the metal fell back from a more than seven-year high to settle 0.5