Element

GSR 03

GSR 01

Certified Val.

Meas. Val.

Dev (%)

Certified Val.

Meas. Val.

Dev (%)

Al₂O₃ (%)

13.83 ± 0.07

13.62 ± 0.01

1.5

13.40 ± 0.04

13.03 ± 0.01

2.7

SiO₂ (%)

44.64 ± 0.06

38.62 ± 0.01

13.5

72.83 ± 0.06

76.28 ± 0.2

−4.7

P₂O₅ (%)

0.95 ± 0.01

1.023 ± 0.002

−7.4

0.093 ± 0.002

0.102 ± 0.001

−11.1

K₂O (%)

2.32 ± 0.03

2.079 ± 0.002

10.4

5.01 ± 0.03

5.197 ± 0.002

−3.7

CaO (%)

8.81 ± 0.01

8.010 ± 0.003

9.1

1.55 ± 0.02

1.628 ± 0.001

−5.0

Fe₂O₃ (%)

13.40 ± 0.03

13.11 ± 0.01

2.2

2.14 ± 0.02

2.258 ± 0.002

−5.5

MnO (ppm)

1700.09

1505 ± 2

11.5

598 ±

502.6 ± 0.7

16.0

Ti (ppm)

14,200 ± 200

12,670 ± 10

10.8

1720 ± 30

1531 ± 2

11.0

V (ppm)

167 ± 5

162.5 ± 2.4

2.7

24 ± 1

25.45 ± 0.82

−6.0

Zn (ppm)

150 ± 4

150 ± 1

0.0

28 ± 1

29.6 ± 0.4

−5.7

Ga (ppm)

24.8 ± 0.6

24.05 ± 0.45

3.0

19 ± 1

21.20 ± 0.33

−11.6

Rb (ppm)

37 ± 2

40.76 ± 0.31

−10.2

466 ± 10

509.7 ± 0.6

−9.4

Sr (ppm)

1100 ± 30

1272 ± 1

−15.6

106 ± 3

122.2 ± 0.3

−15.3

Y (ppm)

22 ± 1

25.05 ± 0.28

−13.9

62 ± 2

72.27 ± 0.39

−16.6

Zr (ppm)

277 ± 10

319.8 ± 0.8

−15.5

167 ± 5

192.7 ± 0.4

−15.4

Nb (ppm)

68 ± 4

79.51 ± 0.42

−16.9

40.0 ± 1.4

42.24 ± 0.28

−5.6

Mo (ppm)

2.6 ± 0.1

2.45 ± 0.51

5.7

3.5 ± 0.1

2.80 ± 0.35

19.9

Sn (ppm)

2.0 ± 0.3

1.73 ± 0.89

13.5

12.5 ± 1.0

14.87 ± 0.85

−19.0

La (ppm)

56 ± 2

41 ± 6

26.2

54 ± 2

68.7 ± 6.5

−27.3

Hf (ppm)

6.5 ± 0.4

4.99 ± 0.88

23.2

6.3 ± 0.5

8.96 ± 0.77

−42.2

Ta (ppm)

4.3 ± 0.4

4.3 ± 1.5

−0.3

7.2 ± 0.4

7.37 ± 0.96

−2.4

Th (ppm)

6.0 ± 0.5

6.89 ± 0.54

−14.9

54.0 ± 1.3

60.22 ± 0.41

−11.5

U (ppm)

1.4 ± 0.2

1.1 ± 0.0

21.4

18.8 ± 1.0

25 ± 1

−33.2