Rare-earth Mineral

However , it is a new clue of prospecting rare-earth mineral resources in the Mesozoic volcanic rock of the region .

是我省首次发现的含砷稀土矿物。它为在该区中生代火山岩中寻找稀土资源提供新的线索。

Calculation of hygienic standard of pyrophyllite mine dust through comparison of toxicity between pyrophyllite and quarts dust identification of the toxicity of powdered rare-earth mineral

用石英粉尘毒性比较法推算腊石混合尘卫生标准的研究

" euxenite : a lustrous , blackish-brown rare-earth mineral consisting primarily of cerium , erbium , titanium , uranium , and yttrium . "

“黑稀金矿：一种光亮的棕黑色稀土矿石，主要由铈、铒、钛、铀和钇构成.”

At least about 65 percent REE are concentrated in the mineral which are less resistance to weather . Thus , it provided the source material of the rare-earth mineral deposit on the ion adsorption pattern of the granite weathering crust .

岩石中至少有65%以上的稀土元素赋存于抗风化能力小的矿物中，为花岗岩风化壳离子吸附型稀土矿床提供了物质来源。