Category: Volcanic
Type
Commons
Name origin
Locality
GPS: 28° 16' 17,2" N, 16° 38' 18,9" W
Major minerals
Accessory minerals
Classification
Colour
Structure
Granularity
Texture
Alterations
Petrographic characteristics
Usage
Literature
Photomicrographs
Normative composition
Step of calculation
Normative minerals
SiO2
TiO2
ZrO2
Al2O3
Fe2O3
FeO
MnO
MgO
CaO
Na2O
K2O
P2O5
F
S
CO2
Total
Molar proportion of normative mineral
Molecular mass of normative mineral
Weight % of normative mineral
Normative minerals
SiO2
TiO2
ZrO2
Al2O3
Fe2O3
FeO
MnO
MgO
CaO
Na2O
K2O
P2O5
F
S
CO2
Total
Molar proportion of normative mineral
Molecular mass of normative mineral
Weight % of normative mineral
Oxide
(wt. %)
58.92
0.76
19.12
3.82
0.00
0.17
0.72
1.32
8.86
5.27
0.13
99.09
Molecular
weight
60.08
79.88
101.96
159.69
71.85
70.94
40.31
56.08
61.98
94.20
141.95
Molecular
proportion
0.9807
0.0095
0.1875
0.0239
0.0024
0.0024
0.0179
0.0235
0.1429
0.0559
0.0009
1
ap
0.0031
0.0009
0.0009
328.68
0.30
ap
0.0031
0.0009
0.0009
328.68
0.30
4
il
0.0024
0.0024
0.0024
151.75
0.36
il
0.0024
0.0024
0.0024
151.75
0.36
4
ru
0.0071
0.0071
79.90
0.57
ru
0.0071
0.0071
79.90
0.57
8
or
0.3357
0.0559
0.0559
0.0559
556.67
31.14
or
0.3357
0.0559
0.0559
0.0559
556.67
31.14
11
ac
0.0455
0.0114
0.0114
0.0114
462.02
5.25
ac
0.0455
0.0114
0.0114
0.0114
462.02
5.25
13
hm
0.0126
0.0126
159.69
2.00
hm
0.0126
0.0126
159.69
2.00
15
di
0.0357
0.0000
0.0179
0.0179
0.0179
216.56
3.87
di
0.0357
0.0000
0.0179
0.0179
0.0179
216.56
3.87
16
wo
0.0026
0.0026
0.0026
116.17
0.30
wo
0.0026
0.0026
0.0026
116.17
0.30
22
ab
0.4471
0.0745
0.0745
0.0745
524.46
39.08
ab
0.4471
0.0745
0.0745
0.0745
524.46
39.08
22
ne
0.1141
0.0571
0.0571
0.0571
284.11
16.21
Y: 1.2090ne
0.1141
0.0571
0.0571
0.0571
284.11
16.21
D: 0.2283
D1: 0.2283
D2: 0.2283
Mg/(Mg+Fe2+): 99.09
Total of normative wt. % 99.09
Comment
Chemical composition
-
SiO2
58.72TiO2
0.76Al2O3
19.12Fe2O3
3.82FeO
0.00MnO
0.17MgO
0.72CaO
1.32Na2O
8.86K2O
5.27P2O5
0.13LOI
0.60Total
99.69Mg(Mg/Fe2+)
1.000A/CNK
0.84A/NK
0.94