lossis

Txiv kab ntxwv kyanite

Txiv kab ntxwv kyanite Tanzania

Txiv kab ntxwv kyanite, los ntawm Tanzania

Txiv kab ntxwv kyanite, los ntawm Tanzania video Kyanite yog feem ntau xiav silicate pob zeb, feem ntau pom nyob hauv aluminium-nplua nuj metamorphic pegmatites thiab / lossis pob zeb hauv tsev pheeb suab. Kyanite ...
Nyeem ntxiv
kev ua yuam kev: Cov ntsiab lus yog kev tiv thaiv !!