Home > Uranium Minerals II – November 29 > MS0827 Haiweeite

Haiweeite - Sold

Haiweeite is a rare uranium silicate mineral, originally thought to be uranophane. McBurney and Murdoch (1959) named the mineral for its type locality in California. The mineral forms a thin yellow crust on a granitic matrix. A crystal structure study by Burns (2001) showed orthorhombic symmetry, while a restudy by Plášil et al. (2013) found a doubled unit cell and redefined the formula: Ca[(UO2)2(SiO3OH)2(Si3O6)]·6H2O.