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Department of Mineralogy and Petrology
Faculty of Natural Sciences
Comenius University in Bratislava

Category: Plutonic

Type

Commons

Name origin

Locality

GPS: 48° 40' 36" N, 19° 39' 5" E

Major minerals

Accessory minerals

Classification

 - Macro  - Classification

Colour

Structure

Granularity

Texture

Alterations

Petrographic characteristics

Usage

Literature

Photomicrographs

 - Micro 1  - Micro 2

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



Oxide
(wt. %)
65.81
0.87
0.02
15.71
2.13
2.09
0.07
0.00
3.75
4.06
2.61
0.25




97.37



Molecular
weight
60.08
79.88
123.22
101.96
159.69
71.85
70.94
40.31
56.08
61.98
94.20
141.95








Molecular
proportion
1.0953
0.0109
0.0002
0.1541
0.0133
0.0301
0.0010
0.0000
0.0669
0.0655
0.0277
0.0018





1
ap











0.0059


0.0018





0.0018
328.68
0.58
4
il




0.0109



0.0109











0.0109
151.75
1.65
7
zr



0.0002

0.0002














0.0002
183.31
0.04
8
or



0.1662


0.0277






0.0277






0.0277
556.67
15.42
9
ab



0.3930


0.0655





0.0655







0.0655
524.46
34.36
10
an



0.1217


0.0609




0.0609








0.0609
278.21
16.93
13
mt







0.0133
0.0133











0.0133
231.54
3.09
14
zvyšky








0.0059

0.0000











15
di



0.0003




0.0001

0.0000
0.0001








0.0001
248.10
0.03
17
hy



0.0057




0.0058

0.0000









0.0057
131.93
0.75
Y: 0.6872
D: -0.4082
Mg/(Mg+Fe2+): 0.000
Total of normative wt. % 97.37

Comment

Chemical composition

-

SiO2
65.81
TiO2
0.87
Al2O3
15.71
Fe2O3
2.13
FeO
2.09
MnO
0.07
MgO
0.00
CaO
3.75
Na2O
4.06
K2O
2.61
P2O5
0.25
H2O+
0.96
H2O-
0.04
Total
98.35
A/CNK
0.96
A/NK
1.65

-

SiO2
66.83
TiO2
0.66
Al2O3
14.70
Fe2O3
3.27
FeO
1.78
MnO
0.09
MgO
0.00
CaO
2.68
Na2O
4.46
K2O
2.84
P2O5
0.20
H2O+
1.38
H2O-
0.09
Total
100.45
A/CNK
0.96
A/NK
1.41

-

SiO2
63.71
TiO2
1.03
Al2O3
15.07
Fe2O3
4.82
FeO
1.48
MnO
0.07
MgO
0.00
CaO
3.59
Na2O
4.25
K2O
2.50
P2O5
0.39
H2O+
1.46
H2O-
0.12
Total
100.40
A/CNK
0.93
A/NK
1.55