Celsian is a silicate mineral with the formula Ba(Al2Si2O8), crystallizing in the monoclinic system. It has a calculated density of 3.389 g/cm3.
Photos
Galuskina, I.O.; Krüger, B.; Galuskin, E.V.; Krüger, H.; Vapnik, Y.; Murashko, M.; Banasik, K.; Agakhanov, A.A. · CC BY 4.0 · CommonsPerchiazzi, Natale and Mauro, Daniela and Vignola, Pietro and Zaccarini, Federica and Eldjarn, Knut · CC BY 4.0 · CommonsShannon Heinle · CC0 · CommonsDavid Hospital · CC BY-SA 4.0 · Commons
Crystallography
Crystal system
monoclinic crystal systemWikidata (CC0)
Space group
I 1 2/c 1
Cell (Å, °)
a = 8.622, b = 13.078, c = 14.411; α = 90, β = 115.1, γ = 90
Cell volume
1471.52 ų, Z = 8
Axial ratios
0.6593:1:1.1019calculated from COD 9000508
Source structure
COD 9000508 (American Mineralogist, 1976) — 1 of 4 structures
Powder X-ray diffraction (calculated)
d (Å)
3.352
3.473
3.027
3.554
2.588
2.777
I/I₀
100
77.6
59.5
45.4
45.4
43.6
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9000508; idealized occupancies, no preferred orientation.
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