Thorite

[θәurait]

解釋/意思:

(noun.) a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite.

科琳錄入--From WordNet

解釋/意思:

(n.) A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium.

編輯:罗达