HomeElement listsCrystal structureDouble hexagonal close-packed

Crystal structure: Double hexagonal close-packed

The double hexagonal close-packed (DHCP) crystal structure resembles two regular HCP unit cells stacked on top of each other. This structure is common in several lanthanides and actinides.

57La

Lanthanumsilvery white

58Ce

Ceriumsilvery white

59Pr

Praseodymiumgrayish white

60Nd

Neodymiumsilvery white

61Pm

Promethiummetallic

95Am

Americiumsilvery white

96Cm

Curiumsilvery metallic, glows purple in the dark

97Bk

Berkeliumsilvery

98Cf

Californiumsilvery

H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Legend

Hexagonal Hexagonal close-packed Body-centered cubic Rhombohedral Simple cubic Face-centered cubic Diamond structure Orthorhombic Tetragonal Double hexagonal close-packed Monoclinic