Petuntse (白墩子 in pinyin: bai2 dun1 zi0), also spelled petunse, also known as china stone, is a granite-derived feldspar. It is one of the two ingredients used in making chinas[?] (the other ingredient being kaolin).
... returned in 1821, the interlude led to a growing desire for independence amongst Brazilians and in 1822 the then prince-regent Dom Pedro I established the independent Empire ...