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Table 2.6 Analyses of K-richterite from ultrapotassic rocks
SiO 2
FeO a
TiO 2
Al 2 O 3
Fe 2 O 3
MgO
MnO
CaO
Na 2 O 2 O r 2 O 3
BaO
F
Cl
SrO
Total
1
53.76
5.48
18.58
6.16
3.92
4.26
97.10
0.61
4.33
2
54.20
5.95
17.01
4.91
4.37
4.67
98.69
1.76
5.82
3
54.70
5.90
15.55
4.67
4.56
4.54
95.91
0.59
5.40
4
53.20
5.20
17.3
0.13
5.20
5.10
4.40
0.20
0.38
97.91
1.10
5.70
5
52.70
3.72
18.76
0.09
8.48
4.05
4.00
0.80
97.98
1.21
3.23
0.94
6
38.33
4.45
12.38
0.22
11.64
1.94
2.16
0.06
96.22
14.17
10.87
7
39.87
4.45
12.96
0.2
11.79
2.53
1.93
0.06
0.08
0.03
99.09
13.57
11.62
8
38.84
4.69
12.54
0.16
11.73
2.34
1.99
0.24
0.04
98.73
13.93
12.23
9
52.89
5.14
18.65
3.64
96.16
0.41
4.51
10
54.40
3.81
18.58
0.09
2.51
97.65
0.33
7.08
11
48.85
3.23
12.36
0.21
1.52
95.89
1.62
17.85
12
51.24
6.34
18.12
0.05
5.55
97.60
0.53
5.45
13
54.50
1.64
18.13
0.11
1.32
96.42
0.93
8.05
a If only FeO values are given, then they indicate total FeO + Fe 2 O 3 contents
1 - 3 K-richterite from lamproitic rocks of Smoky Bute (Mitchell et al. 1987)
4 - 5 K-richterite form ultrapotassic rocks of Spain (Lopez-Ruiz and Badiola 1980)
7 - 8 K-richterite from leucite tephrite, Laacher see (Duda and Schminke 1978)
9 Analyses of richterite from Cancarix lamproite, Spain (Wagner and Velde 1986)
10 Analyses of richterite from Barquerox lamproite, Murcia, Spain (Wagner and Velde 1986)
11 Analyses of richterite from Shiprock dyke lamproite, New Mexico, U.S.A. (Wagner and Velde 1986)
12 Analyses of richterite from Mount North lamproite, West Kimberley, Australia (Wagner and Velde 1986)
13 Analyses of richterite from Orciatico lamproite Pisa, Italy (Wagner and Velde 1986)
 
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