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Room Temperature Bornite (Cu₅FeS₄)

Orthorhombic · space group Pbca (No. 61) · Pearson oP160 · mineral: bornite

Symmetry elements and Wyckoff positions (interactive)

Room Temperature Bornite (Cu₅FeS₄) in Pbca

Setting
Loading the group…
x = 0.10, y = 0.17, z = 0.08

Unit cell

Lattice constants
a = 10.956 Å, b = 21.870 Å, c = 10.961 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
2626.4 ų
Atoms in the conventional cell
160 (Cu 80, Fe 16, S 64)
Formula units Z
16
Pearson symbol
oP160 — orthorhombic, primitive lattice, 160 atoms per conventional cell
Symmetry operations
8 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Cu10Cu8c80.85350.82010.3959
Cu1Cu8c80.63400.55740.3653
Cu2Cu8c80.60500.93980.1238
Cu3Cu8c80.89090.55920.3737
Cu4Cu8c80.61990.81500.1363
Cu5Cu8c80.88350.69030.3614
Cu6Cu8c80.88450.80490.1178
Cu7Cu8c80.64970.92850.3908
Cu8Cu8c80.82920.58750.0851
Cu9Cu8c80.64170.67760.1051
Fe11Fe8c80.86920.93890.1321
Fe12Fe8c80.61770.69090.3770
S13S8c80.99550.00260.2500
S14S8c80.50040.75460.2513
S15S8c80.74460.62710.2575
S16S8c80.74900.99960.0046
S17S8c80.50510.62510.4935
S18S8c80.99630.88090.0048
S19S8c80.76020.87640.2488
S20S8c80.74210.74850.4975

The multiplicity and the Wyckoff letter say how many copies of the site the group makes in one cell and on which kind of symmetry element the site sits; the 160 atoms drawn above are these sites multiplied by all 8 operations. Press Wyckoff under Colour to see the sites, and tick a symmetry element on the left to see which atoms lie on it.

How to read the label

A5BC4_oP160_61_10c_2c_8c-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oP160, then the space-group number 61, then the Wyckoff letters occupied by each element in turn (Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Cu: 8c; Fe: 8c; Fe: 8c; S: 8c; S: 8c; S: 8c; S: 8c; S: 8c; S: 8c; S: 8c; S: 8c). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: RT Bornite.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A5BC4_oP160_61_10c_2c_8c-001 (M. J. Mehl et al., Comput. Mater. Sci. 136, S1 (2017); D. Hicks et al., ibid. 161, S1 (2019) and 199, 110450 (2021); S. Eckert et al., ibid. 240, 112988 (2024)). Symmetry elements, Wyckoff assignment and the diagram are computed on this page from the group operations.

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