Mountainite
Zubkova N V, Pekov I V, Pushcharovsky D Y, Chukanov N V
Zeitschrift fur Kristallographie 224 (2009) 389-396
The crystal structure and refined formula of mountainite, KNa2Ca2[Si8O19(OH)]*6H2O
Locality: Yubileinaya pegmatite, Lovozero alkaline complex, Kola Peninsula, Russia
_database_code_amcsd 0011131
CELL PARAMETERS: 13.7040 6.5760 13.7510 90.000 105.752 90.000
SPACE GROUP: P2/c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1192.668
Density (g/cm3): 2.269
MAX. ABS. INTENSITY / VOLUME**2: 6.790531786
RIR: 0.974
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
6.70 100.00 13.1894 1 0 0 2
13.24 33.82 6.6868 -1 0 2 2
13.38 1.04 6.6173 0 0 2 2
13.43 19.88 6.5947 2 0 0 2
13.46 20.53 6.5760 0 1 0 2
15.04 3.05 5.8891 0 1 1 4
15.05 2.20 5.8851 1 1 0 4
16.20 4.39 5.4727 -2 0 2 2
16.54 13.98 5.3601 1 0 2 2
17.22 2.66 5.1507 1 1 1 4
18.93 10.91 4.6886 -1 1 2 4
18.95 2.52 4.6826 -2 1 1 4
19.06 31.35 4.6565 2 1 0 4
21.01 3.94 4.2292 -3 0 2 2
21.12 1.42 4.2065 -2 1 2 4
21.39 12.59 4.1547 1 1 2 4
21.41 2.80 4.1505 2 1 1 4
21.45 6.13 4.1425 2 0 2 2
23.70 4.06 3.7549 -1 1 3 4
23.75 6.70 3.7466 -3 1 1 4
24.30 5.47 3.6635 0 1 3 4
24.35 6.64 3.6549 3 1 0 4
25.00 1.31 3.5615 -2 1 3 4
25.03 4.64 3.5570 -3 1 2 4
26.66 3.78 3.3434 -2 0 4 2
26.68 3.62 3.3410 1 1 3 4
26.73 11.42 3.3352 3 1 1 4
26.73 2.82 3.3346 -4 0 2 2
26.95 2.30 3.3086 0 0 4 2
27.04 18.54 3.2973 4 0 0 2
27.12 1.20 3.2880 0 2 0 2
27.96 2.80 3.1910 0 2 1 4
27.97 18.90 3.1903 -3 1 3 4
28.34 1.77 3.1490 -1 2 1 4
29.04 2.04 3.0750 -3 0 4 2
29.40 33.26 3.0377 -4 1 1 4
29.56 4.11 3.0215 1 0 4 2
29.98 20.02 2.9803 -2 1 4 4
30.05 1.41 2.9741 -4 1 2 4
30.24 44.54 2.9556 0 1 4 4
30.29 15.83 2.9506 -1 2 2 4
30.31 18.75 2.9491 -2 2 1 4
30.32 10.70 2.9476 4 1 0 4
30.38 12.16 2.9425 2 2 0 4
30.47 33.57 2.9340 2 1 3 4
30.49 3.97 2.9315 3 1 2 4
31.93 12.74 2.8027 1 2 2 4
32.13 16.75 2.7855 -3 1 4 4
32.17 12.11 2.7825 -4 1 3 4
32.61 1.13 2.7455 1 1 4 4
32.73 9.09 2.7363 -4 0 4 2
33.43 1.74 2.6800 2 0 4 2
33.61 1.42 2.6668 -3 2 1 4
34.01 1.43 2.6363 0 2 3 4
34.05 9.22 2.6331 3 2 0 4
34.53 5.64 2.5975 -2 2 3 4
34.55 2.72 2.5958 -3 2 2 4
35.25 1.99 2.5463 3 1 3 4
35.57 2.56 2.5238 -5 1 1 4
35.76 2.59 2.5113 -5 1 2 4
35.80 2.19 2.5081 1 2 3 4
36.71 2.27 2.4482 5 1 0 4
37.39 5.29 2.4053 -5 0 4 2
37.87 2.31 2.3759 -1 2 4 4
38.40 2.62 2.3443 -2 2 4 4
38.45 2.09 2.3413 -4 2 2 4
38.67 2.04 2.3283 4 2 0 4
38.81 2.71 2.3203 3 2 2 4
38.96 3.55 2.3115 1 1 5 4
39.07 6.54 2.3057 5 1 1 4
39.53 1.10 2.2795 -6 0 2 2
39.87 1.16 2.2609 -4 1 5 4
40.73 2.23 2.2151 4 1 3 4
40.91 2.25 2.2058 0 0 6 2
42.04 2.39 2.1493 -1 3 1 4
42.76 1.94 2.1147 3 2 3 4
42.76 1.39 2.1146 -6 0 4 2
42.84 2.89 2.1110 -3 1 6 4
43.00 1.23 2.1033 -4 2 4 4
43.49 1.48 2.0808 0 3 2 4
43.51 1.07 2.0801 2 3 0 4
43.57 1.59 2.0774 2 2 4 4
43.58 1.38 2.0770 -5 1 5 4
43.91 1.16 2.0618 0 2 5 4
44.01 1.95 2.0575 5 2 0 4
44.67 1.23 2.0284 2 3 1 4
45.91 3.32 1.9767 -1 3 3 4
46.25 10.09 1.9630 0 3 3 4
46.28 1.83 1.9617 3 3 0 4
46.39 2.70 1.9575 -7 0 2 2
46.75 4.14 1.9430 5 1 3 4
46.76 3.33 1.9426 -4 2 5 4
46.84 1.03 1.9395 2 0 6 2
46.96 1.17 1.9349 6 0 2 2
47.50 2.21 1.9142 3 2 4 4
48.36 4.87 1.8820 -2 1 7 4
48.45 2.24 1.8790 -3 3 3 4
48.97 1.64 1.8602 2 1 6 4
49.14 1.80 1.8542 -7 1 3 4
49.36 2.78 1.8463 -4 3 1 4
49.78 1.14 1.8317 -4 3 2 4
49.90 4.56 1.8274 6 2 0 4
50.21 3.26 1.8170 0 1 7 4
50.64 1.71 1.8026 -4 1 7 4
50.75 1.61 1.7988 -7 1 4 4
51.31 2.20 1.7807 -4 2 6 4
51.92 2.10 1.7611 1 2 6 4
52.77 1.42 1.7348 7 1 1 4
53.21 3.81 1.7215 6 1 3 4
53.31 6.24 1.7185 -2 0 8 2
53.31 1.36 1.7184 -7 1 5 4
53.51 2.06 1.7123 -1 3 5 4
53.64 2.59 1.7088 -3 0 8 2
53.66 3.09 1.7081 -2 3 5 4
54.42 2.26 1.6859 5 3 0 4
54.56 2.13 1.6820 -7 2 2 4
54.82 1.26 1.6747 -7 0 6 2
54.97 2.83 1.6705 2 2 6 4
55.07 1.53 1.6676 6 2 2 4
55.08 1.21 1.6673 -8 0 4 2
55.93 2.08 1.6440 0 4 0 2
56.11 3.24 1.6392 4 0 6 2
56.27 2.38 1.6348 7 2 0 4
56.62 3.00 1.6256 -7 2 4 4
56.68 1.42 1.6240 -6 1 7 4
57.54 2.32 1.6018 5 2 4 4
58.41 1.19 1.5800 -6 3 2 4
58.42 2.71 1.5797 -1 3 6 4
61.36 2.05 1.5109 1 3 6 4
62.45 3.38 1.4871 -8 2 4 4
62.80 1.27 1.4797 5 2 5 4
63.20 1.66 1.4713 4 4 0 4
63.48 2.99 1.4655 9 0 0 2
63.67 2.28 1.4616 -9 1 4 4
64.53 1.17 1.4441 1 4 4 4
64.58 1.21 1.4432 4 4 1 4
64.81 1.96 1.4385 7 1 4 4
65.30 1.97 1.4289 7 3 0 4
67.08 1.02 1.3952 5 4 0 4
68.65 1.18 1.3671 5 2 6 4
69.22 1.61 1.3573 -5 4 4 4
69.50 1.30 1.3524 -2 3 8 4
71.25 1.34 1.3235 0 0 10 2
74.88 2.03 1.2681 -3 2 10 4
75.52 1.02 1.2589 -4 2 10 4
83.26 1.08 1.1605 -11 2 4 4
84.38 1.29 1.1479 -11 1 7 4
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.