Structure 9005290

9005289 << 9005290 >> 9005291

Citation: Ballirano, P.; Bonaccorsi, E.; Maras, A.; Merlino, S. (1997). Crystal structure of afghanite, the eight-layer member of the cancrinite-group: evidence for long-range Si,Al ordering. European Journal of Mineralogy, 9, pp. 21-30.

Formula: Al12 Ca5 Cl2.9 F0.1 K2.36 Na8.64 O60 S3 Si12

Cell parameters:

a = 12.8013 Å
b = 12.8013 Å
c = 21.4119 Å

α = 90°
β = 90°
γ = 120°

List type: interleaving

List: 3D

Molecules

CIF datablock 0, entity 1 of 2

Basis: (1;0;0 0;1;0 0;0;1)

Dimensionality: 3

Formula: Ca44 Cl2 F6 K36 Na36 Os50 S6 (Ca22 Cl F3 K18 Na18 Os25 S3)

Multiplicity: 1

span 1 {1 1 1}

highlight edges

CIF datablock 1, entity 2 of 2

Basis: (1;0;0 0;1;0 0;0;1)

Dimensionality: 3

Formula: Al24 O96 Si24 (Al O4 Si)

Multiplicity: 1

Coordination sequences:

2, 6, 6, 16, 14, 39, 26, 66, 42, 100
2, 6, 6, 16, 14, 40, 26, 62, 42, 107
2, 6, 6, 17, 14, 37, 26, 67, 42, 100
2, 6, 6, 17, 14, 38, 26, 64, 42, 104
2, 6, 6, 18, 14, 35, 26, 68, 42, 100
2, 6, 6, 18, 14, 35, 26, 70, 42, 96
4, 4, 12, 10, 28, 20, 52, 34, 84, 53
4, 4, 12, 10, 28, 20, 52, 34, 84, 54