Category: Volcanic glass
Type
Commons
Name origin
Locality
GPS: 48° 38' 27.2" N, 18° 55' 15.1" E
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. %)
73.36
0.08
12.59
1.24
0.07
0.18
1.11
2.03
4.95
0.01
95.61
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
1.2210
0.0009
0.1235
0.0078
0.0009
0.0009
0.0045
0.0198
0.0328
0.0525
0.0001
1
ap
0.0002
0.0001
0.0001
328.68
0.02
ap
0.0002
0.0001
0.0001
328.68
0.02
4
il
0.0009
0.0009
0.0009
151.75
0.14
il
0.0009
0.0009
0.0009
151.75
0.14
8
or
0.3153
0.0525
0.0525
0.0525
556.67
29.25
or
0.3153
0.0525
0.0525
0.0525
556.67
29.25
9
ab
0.1965
0.0328
0.0328
0.0328
524.46
17.18
ab
0.1965
0.0328
0.0328
0.0328
524.46
17.18
10
an
0.0391
0.0196
0.0196
0.0196
278.21
5.44
an
0.0391
0.0196
0.0196
0.0196
278.21
5.44
10
c
0.0186
0.0186
101.96
1.90
c
0.0186
0.0186
101.96
1.90
13
hm
0.0078
0.0078
159.69
1.24
hm
0.0078
0.0078
159.69
1.24
14
zvyšky
0.0000
0.0045
0.0000
zvyšky
0.0000
0.0045
0.0000
17
hy
0.0045
0.000
0.0045
0.0045
100.33
0.45
hy
0.0045
0.000
0.0045
0.0045
100.33
0.45
18
q
0.6657
0.6657
60.08
39.99
Y: 0.5554q
0.6657
0.6657
60.08
39.99
D: -0.6657
Mg/(Mg+Fe2+): 1.000
Total of normative wt. % 95.61
Comment
Chemical composition
-
SiO2
73.36TiO2
0.08Al2O3
12.59Fe2O3
1.24MnO
0.07MgO
0.18CaO
1.11Na2O
2.03K2O
4.95P2O5
0.01H2O+
0.25H2O-
0.37Total
96.23Mg(Mg/Fe2+)
0.22A/CNK
1.17A/NK
1.45
-
SiO2
75.00Al2O3
9.40Fe2O3
2.97MgO
0.50CaO
1.70Na2O
3.55K2O
3.80LOI
2.15Total
97.27Mg(Mg/Fe2+)
0.25A/CNK
0.72A/NK
0.94
-
SiO2
73.60Al2O3
12.40Fe2O3
1.25MgO
0.15Na2O
2.99K2O
4.18H2O+
3.17H2O-
0.20Total
97.94Mg(Mg/Fe2+)
0.19A/CNK
1.31A/NK
1.31