Olympia Crystal Stone 色彩石瓷产品说明书 STONE Series PORCELAIN
First one is characterised by fine to coarse crystal size, greyish-red colour and grey tinge of quartz (Eliasson and Schöberg, 1991). Also, common presence of microcline, plagioclase (An20-30) and some biotite in the mineral composition are characteristic for this rock (Peterrsson and ...