Thorite
[θәurait]
解释:
(noun.) a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite.
科琳录入--From WordNet
解释:
(n.) A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium.
编辑:罗达