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Calciouranoite, Metacalciouranoite


Calciouranoite : (Ca,Ba,Pb)U2O7·5H2O, Metacalciouranoite : (Ca,Ba,Na2)U2O7·2H2O

Photo Copyright © Pavel M. Kartashov collection & photo  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Strel'tsovskoye ore field, Krasnokamensk, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia
The largest which I somewhen seen compact masse of calciouranoite. Its composition is (Ca.81Ba.10Pb.09)1.00U2.00O7*5H2O. More bright yellow crust is metacalciouranoite. Specimen size is 5x4x2 cm and its radioactivity is 7300 μR/h. Collected by Larisa N. Belova in 70th in Tulukui quarry. Pavel M. Kartashov analysis, collection and photo.

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