Argon
Wyckoff R W G
Crystal Structures 1 (1963) 7-83
Second edition. Interscience Publishers, New York, New York
Sample at T = 4.2 K
Cubic closest packed, ccp, structure
_database_code_amcsd 0011139
5.256 5.256 5.256 90 90 90 Fm3m
atom  x  y  z
Ar    0  0  0