source: Examples/Indexing/orthorhombic/Bassanite-S18p23-Immm.txt @ 325

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1#Calcium Sulfate Hydrate (Bassanite), CaS04-0.5H20
2#Pseudo-orthorhombic, I***, Z = 12. The literature on CaS04-0.5H20 is extensive and
3#confusing as noted by Gay [1965] and Clifton [1972]. The cell below was modified from
4#one given by Gay [1965] who stated that the true symmetry was monoclinic, with p = 90 .
5#This NBS cell was also consistent with one found by use of the Visser program and
6#associated refinement procedures. Bushuev [1980] reported a similar monoclinic cell
7#for CaS0 4 -0.67H 2 0 with a=12.028, b=38.022, c=6.927, Y=90.21 , space group 12. There
8#was no evidence to require the monoclinic cell for NBS data.
9#Lattice constants of this sample
10#a = 12.031(4), b = 12.695(6), c = 6.934(2)
11#a/b = 0.9477, c/b = 0.5462
12#Volume 1059.1 A3
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1925.66
2027.64
2129.34
2229.70
2331.86
2432.94
2534.24
2634.88
2738.39
2839.62
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3041.31
3142.21
3242.68
3344.64
3445.20
3546.44
3647.59
3749.31
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