Hydroxyl-rich topaz in high-pressure and ultrahigh-pressure kyanite quartzites, with retrograde woodhouseite, from the Sulu terrane, eastern China.

Reports findings of hydroxyl-rich topaz in the Sulu kyanite quartzite from eastern China. Discussion of the petrochemical characteristics and stabilities of hydroxyl-rich topaz; Role of fluid in metamorphic processes related to continental subduction and collision; Origin of woodhouseite.