radioactive mineral

In this survey, the surface γ dosage, radioactivity specific activity, uranium and thorium series equilibrium, the content of radioactive element of three kinds of typical Chinese zircon mineral has been analyzed, and the component and radioactivity of zircon in Wanning, Hainan Province tested.

调查分析了我国3个典型矿区锆英砂堆放表面γ剂量、放射性比活度、铀系和钍系平衡状况以及放射性元素含量；测定了我国海南万宁矿区锆英砂的组成及放射性。

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

一种放射性矿物，由硅酸钍组成，是钍的来源，见于粗糙的花岗岩中。

This conflicted with views which held that no mineral should be more radioactive than metallic uraniurn.

这就与矿物质的放射性不应该高于金属铀的放射性这一观点相冲突.

A green radioactive mineral that is a hydrous crystalline phosphate of uranium and copper.

一种白色或灰色的矿石,含锂、铝、磷酸盐,是锂的重要来源.

In the processing and utilization of rare-earth minerals, radioactive thorium series is in radioactive equilibrium basic state in raw ore, concentrate and mineral processing tailings, but in the rare earth products, enrichment, Ce-rich slag and smelting waste, the thorium series is non-radioactive state.

在稀土矿物在加工利用中，原矿、精矿和选矿尾矿中，放射性钍系基本处于放射性平衡状态，但在稀土产品、富集物、富铈渣和冶炼废渣中，钍系处于非放射性状态。

The discovery also explains why helium is found in radioactive mineral deposits.

这个发现也解释了为什么在放射性矿渣中找到了氦.