Sources of Fluxes
Theoretical Feldspar

1 K2O(Potash) or

1 Na2O (Soda)

1 Al2O3

6 SiO2
Custer Feldspar

0.665 K2O

1.043 Al2O3

7.137 SiO2 

0.304 Na2O

0.031 CaO 

0.006 Fe2O3

6.8:1 Si:Al Ratio

Percentage Analysis:

69.22 % SiO217.17 % Al2O310.11 % K2O3.04 % Na2O0.27 % CaO0.16 % Fe2O3

Dolomite:(Theoretical)

0.500 CaO 

0.500 MgO 

Percentage Analysis:

58.17 % CaO41.83 % MgO

Petalite:(Theoretical)

1 Li2O

1 Al2O3

8 SiO2
Petalite Actual

0.018 K2O

0.951 Al2O3

7.793 SiO2 

0.037 Na2O

0.012 CaO

0.061 MgO 

0.872 Li2O

0.006 F    

8.2:1 Si:Al Ratio

Percentage Analysis:

78.22 % SiO216.20 % Al2O30.28 % K2O0.38 % Na2O0.12 % CaO0.42 % MgO4.36 % Li2O0.02 % F

Spodumene:(Theoretical)

1 Li2O

1 Al2O3

4 SiO2

0.033 K2O

1.046 Al2O3

4.333 SiO2

0.017 Na2O

0.021 CaO

0.021 Fe2O3

0.929 Li2O

0.008 P2O5 

4.1:1 Si:Al Ratio

Percentage Analysis:64.33 % SiO226.36 % Al2O30.77 % K2O0.27 % Na2O0.30 % CaO6.87 % Li2O0.84 % Fe2O30.27 % P2O5
Nepheline Syenite Theoretical
A200 Nepheline Syenite

0.2199 K2O

1.034 Al2O3

4.558SiO2 

0.7125 Na2O

0.0563 CaO

0.0018 Fe2O3

0.0113 MgO

4.4:1 Si:Al Ratio
Minspar:

0.250 K2O

1.034 Al2O3

6.517 SiO2 

0.597 Na2O

0.153 CaO

6.3:1 Si:Al Ratio

Percentage Analysis:69.16 % SiO218.62 % Al2O34.15 % K2O6.54 % Na2O1.52 % CaO