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%.

其白质量大于或等于35％，纤维小于或等于2O%，灰分小于或等于15％，钙量2．0-4．O％，总磷大于或等于0．8％，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.

某些矿物质(青铀矿物质、铀云母或钙铀云母)活性比根据其铀或针量所判断的要高。