Helium (fcc phase)
allotrope
He
Solid helium in its face-centred cubic form — only exists under high pressure
← Allotrope of Helium
A crystalline allotrope of Helium (space group F m -3 m), sourced from the Crystallography Open Database (COD 9011636).
Material
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Crystallography
| Catalogue identity | Helium — F m -3 m - F m -3 m |
| Formula | He |
| Crystal system | cubic |
| Space group | F m -3 m |
| Lattice (a, b, c) Å | 4.242, 4.242, 4.242 |
| Angles (α, β, γ) ° | 90, 90, 90 |
| Density (g/cm³) | 0.348 |
| Determination | Experimental (measured) |
Structure data: Crystallography Open Database · Public domain (CC0)
