Ralstonite
[rəlstənaɪt]
解釋/意思:
(n.) A fluoride of alumina and soda occurring with the Greenland cryolite in octahedral crystals.
手打:托马斯
[rəlstənaɪt]
(n.) A fluoride of alumina and soda occurring with the Greenland cryolite in octahedral crystals.
手打:托马斯