Megakalsilite
Khomyakov A P, Nechelyustov G N, Sokolova E V, Bonaccorsi E, Merlino S, Pasero M
The Canadian Mineralogist 40 (2002) 961-970
Megakalsilite, a new polymorph of KAlSiO4 from the Khibina alkaline massif,
Kola Peninsula, Russia: mineral description and crystal structure
Locality: Khibina alkaline massif, Kola Peninsula, Russia
_database_code_amcsd 0005778
CELL PARAMETERS: 18.1111 18.1111 8.4619 90.000 90.000 120.000
SPACE GROUP: P6_3
X-RAY WAVELENGTH: 1.541838
Cell Volume: 2403.744
Density (g/cm3): 2.622
MAX. ABS. INTENSITY / VOLUME**2: 16.88224826
RIR: 2.097
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
14.33 10.19 6.1827 1 1 1 6
19.61 4.75 4.5278 2 2 0 6
21.00 11.34 4.2309 0 0 2 1
22.27 13.30 3.9922 2 2 1 6
28.12 21.03 3.1729 1 4 1 6
28.12 18.10 3.1729 4 1 1 6
28.88 100.00 3.0913 2 2 2 6
31.47 4.31 2.8430 3 3 1 6
33.27 4.86 2.6930 1 1 3 6
34.30 46.08 2.6141 6 0 0 6
35.75 1.15 2.5116 5 2 0 6
35.96 11.73 2.4976 6 0 1 6
37.35 3.16 2.4077 2 5 1 6
37.35 1.08 2.4077 5 2 1 6
37.57 3.16 2.3941 2 2 3 6
39.82 4.25 2.2639 4 4 0 6
40.57 2.93 2.2239 6 0 2 6
41.83 1.01 2.1597 5 2 2 6
42.74 11.22 2.1155 0 0 4 1
43.93 2.93 2.0609 3 3 3 6
45.44 1.70 1.9961 4 4 2 6
47.23 1.18 1.9243 6 3 1 6
47.42 2.86 1.9173 6 0 3 6
47.44 1.68 1.9166 2 2 4 6
48.53 2.48 1.8757 2 5 3 6
48.53 2.61 1.8757 5 2 3 6
51.61 3.43 1.7710 5 5 1 6
51.78 1.99 1.7655 4 4 3 6
54.72 1.65 1.6774 2 8 1 6
54.72 1.12 1.6774 8 2 1 6
54.89 4.64 1.6727 1 7 3 6
54.89 4.02 1.6727 7 1 3 6
55.21 1.10 1.6636 1 1 5 6
55.91 3.06 1.6445 6 0 4 6
57.72 1.92 1.5972 7 4 1 6
58.15 6.12 1.5865 2 8 2 6
58.15 3.98 1.5865 8 2 2 6
58.20 2.05 1.5853 2 2 5 6
59.84 3.61 1.5457 4 4 4 6
61.08 3.43 1.5171 1 4 5 6
61.08 3.76 1.5171 4 1 5 6
61.43 8.11 1.5093 6 6 0 6
63.44 1.67 1.4662 1 10 1 6
63.59 1.28 1.4631 2 8 3 6
63.59 1.10 1.4631 8 2 3 6
65.68 1.85 1.4215 6 6 2 6
66.27 1.06 1.4103 0 0 6 1
66.64 2.08 1.4035 2 5 5 6
66.64 1.10 1.4035 5 2 5 6
72.29 3.27 1.3071 12 0 0 6
76.24 1.14 1.2488 12 0 2 6
76.79 5.19 1.2412 6 0 6 6
77.14 1.87 1.2365 5 5 5 6
79.64 1.59 1.2039 4 10 2 6
79.64 1.98 1.2039 10 4 2 6
81.93 1.34 1.1759 7 7 3 6
82.20 1.62 1.1727 7 4 5 6
84.44 1.13 1.1472 10 4 3 6
87.21 1.38 1.1178 1 10 5 6
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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.