Chemical analysis in%

Sample U CONV-13

Sample U CONV 14

Sample U CONV 15

Sample U CONV 16

Sample U CONV 17

U

2.9

0.15

34.0

10.8

0.44

Ca

29.9

33.4

2.56

17.3

38.6

Mg

0.41

0.45

7.1

3.79

0.232

Fe

0

0

0

0

0.15

Si

1.2

3.7

1.1

0

0