The content of autunite is between 2% to 4%, and the content of phosphor is over or equal to 0.8%;The content of salt is between 3% to 7%.

其中粗含量大于或于35％，粗纤维小于或于2O%，粗灰分小于或于15％，钙含量2．0-4．O％，总磷大于或于0．8％，食盐含量3．0-7.0%。

But an unexpected fact was noted: certain minerals( pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.

但是一个意外引起了我注意：某些矿物(青铀矿物、铀云母或钙铀云母)活性比根据其铀或针含量所判断要高。