252 LE LAPIDAIRE CHINOIS 



The tcu-p'o ni-Ian, lower quality, of a muddy blue colour. 



The yellow ya-gu. 



The white ya-gu. 



4o Stones belonging to Ihe category mao-tsing. 



The (true) mao-tsing has a fibre of lustre in the interior. 



The tsou-shui-shi when dug from the mines resembles the mao-tsing. 



5» Stones called tien-tze. 



The ni-she-bu-di. This is the species found in the country of Mohammedans. 

 It is distinguished by itsfine structure. 



The k'i-li-ma-ni. It is also called ho si tien tze, and has a coarse structure. 



The stone of King chou, called also tien-tze from Slang yang. It changes its 

 colour. 



