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Helium
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| Helium Formula: He Name: Helium Unit cell: 3.57 3.57 5.83 90.0 90.0 120.0 , V=64.35 Space group: P63/MMC (194) |
Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Sample at T = 2 K, Hexagonal closest packed, hcp, structure
