Sample
XRF
Al2O3
MgO
Fe2O3
TiO2
SiO2
CaO
K2O
Na2O
Cl
Others
S1
79.3
4.7
0.6
2.7
2.9
2.2
1.0
2.5
2.0
2.3
S2
79.6
4.3
0.7
3.5
2.8
2.2
0.2
1.8
0.7
4.1
S3
80.9
3.4
0.7
3.4
2.7
2.1
0.3
1.7
0.9
4.0
S4
71.6
4.5
1.9
5.6
6.2
6.0
0.3
-
-
4.1
S5
53.4
6.8
1.2
0.5
17.8
2.9
1.1
10.5
3.5
2.4
S6
80.5
1.3
0.9
8.3
2.9
1.6
3.0
0.43
-
1.0
S7
77.9
3.8
1.3
0.4
7.6
2.5
1.1
2.81
0.9
1.7
S8
76.7
4.3
3.4
2.0
5.2
3.5
0.7
1.0
0.8
2.5
S9
76.9
4.1
0.4
3.2
2.6
2.0
0.6
3.2
3.4
3.7
S10
81.0
4.2
0.7
1.1
3.9
3.8
0.4
0.3
-
4.6
S11
71.2
4.3
1.8
1.5
10.6
2.9
0.6
1.7
1.5
4.1
75.0
4.0
1.4
2.8
6.3
2.8
0.7
2.2
1.2
3.3
σ
8.0
1.2
1.0
2.3
4.7
1.1
0.7
2.7
1.2
1.3