Pagodite

 Pagodite or agalmatolite is a variety of pyrophyllite used by Chinese artisans for carvings in pagodas and similar objects.[1] Usually soft and sometimes soapy, it can be a greyish green or greyish yellow colour.[2] It is sometimes also referred to (loosely) as soapstone.[3] Small pagodite pieces are used as traditional writing tools in Japan.

Pagodite for sale in Japan

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 Metasyntactic variable, which is released under the 
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