Geology Reference
In-Depth Information
Table 10.5: Mineralogical composition of the crepuscular crust. - continued
from previous page.
Mineral Formula mass, %
Augite Ca
0:9
Na
0:1
Mg
0:9
Fe
2+
0:2
Al
0:4
Ti
0:1
Si
1:9
O
6
3.00E+00
Hornblende Ca
2
Fe
2+
4
Al
0:75
Fe
3+
0:25
(Si
7
AlO
22
)(OH)
2
2.63E+00
Labradorite
Na
0:5
Ca
0:5
Al
1:5
Si
2:5
O
8
2.50E+00
Na
0:3
Fe
3+
2
Si
3:7
Al
0:3
O
10
(OH)
2
4(H
2
O)
Nontronite
1.93E+00
Opal
SiO
2
1:5(H
2
O)
1.24E+00
Mg
3:75
Fe
2+
1:25
Si
3
Al
2
O
10
(OH)
8
Ripidolite
1.20E+00
Fe
2+
3
Al
2
(SiO
4
)
3
Almandine
1.04E+00
Muscovite
KAl
3
Si
3
O
10
(OH)
1:8
F
0:2
1.01E+00
Sillimanite
Al
2
SiO
5
9.97E-01
Ca
2
Fe
3+
Al
2
(SiO
4
)
3
(OH)
Epidote
9.06E-01
Kaolinite
Al
2
Si
2
O
5
(OH)
4
8.36E-01
Calcite
CaCO
3
8.06E-01
Fe
3+
2
Fe
2+
O
4
Magnetite
7.97E-01
Na
2
Fe
2+
3
Fe
3+
2
(Si
8
O
22
)(OH)
2
Riebeckite
5.74E-01
Beidellite
Na
0:33
Al
2:33
Si
3:67
O
10
(OH)
2
5.10E-01
Fe
2+
TiO
3
Ilmenite
4.71E-01
Titanite
CaTiSiO
5
4.46E-01
Mg
3:75
Fe
2+
1:25
Si
3
Al
2
O
10
(OH)
8
Clinochlore
4.37E-01
Sepiolite
Mg
4
Si
6
O
15
(OH)
2
6(H
2
O)
3.48E-01
NaFe
3+
Si
2
O
6
Aegirine
3.04E-01
Diopside
CaMgSi
2
O
6
3.04E-01
Natrolite
Na
2
Al
2
Si
3
O
10
2(H
2
O)
2.97E-01
Cummingtonite
Mg
7
(Si
8
O
22
)(OH)
2
2.91E-01
Phosphate rock
Ca
3
(PO
4
)
2
2.79E-01
MgFe
2+
Si
2
O
6
Hypersthene
2.72E-01
CaFe
2+
0:6
Mg
0:3
Mn
2+
0:1
(CO
3
)
2
Ankerite
2.71E-01
NaCa
2
Fe
2+
4
Fe
3+
(Si
6
Al
2
O
22
)(OH)
2
2.58E-01
Hastingsite
Bytownite
Na
0:2
Ca
0:8
Al
1:8
Si
2:2
O
8
2.50E-01
Ca
2
Mg
3
Si
8
O
22
(OH)
2
Fe
2+
2
Actinolite
2.47E-01
Mg
2:3
Fe
3+
0:6
K
0:3
Ca
0:1
Si
2:8
Al
1:3
O
10
(OH)
1:8
F
0:2
3(H
2
O)
Hydrobiotite
2.44E-01
Montmorillonite Na
0:165
Ca
0:0835
Al
2:33
Si
3:67
O
10
(OH)
2
2.39E-01
Andalusite
Al
2
SiO
5
2.03E-01
Lawsenite
CaAl
2
Si
2
O
7
2.00E-01
Diaspore
AlO(OH)
1.77E-01
Mg
3:75
Fe
2+
1:25
Si
3
Al
2
O
10
(OH)
8
Pennine
1.71E-01
K
0:6
Na
0:05
Fe
3+
1:3
Mg
0:4
Fe
2+
0:2
Al
0:3
Si
3:8
O
10
(OH)
2
Glauconite
1.56E-01
Dolomite
CaMg(CO
3
)
2
1.42E-01
Prehnite
Ca
2
Al
2
Si
3
O
10
(OH)
2
1.41E-01
Hydragillite/
Gibbsite
Al(OH)
3
1.38E-01
TiFe
2+
2
O
4
Ulvöspinel
1.16E-01
Fe
3+
O(OH)
Goethite
1.04E-01
KNa
2
LiFe
2+
1:5
Mn
2+
0:5
Ti
2
Si
8
O
24
Neptunite
9.97E-02
Hematite
Fe
2
O
3
9.68E-02
KFe
2+
2:5
Mg
0:5
Fe
3+
0:75
Al
0:25
Si
3
O
10
(OH)
2
9.11E-02
Lepidomelane/
Annite
Barite
BaSO
4
8.03E-02
Continued on next page :::
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