Tags: Chemical Substance, Mineral.
Cymrite is a silicate mineral with the chemical formula BaAl2Si2(OOH)8·H2O. The mineral is named for Cymru which is the Welsh word for Wales.Cymrite with perfect cleavage and a monoclinic crystalline system falls in the silicate group. Silicates are formed of Silicon and Oxygen bonding together to form tetrahedra. The symmetry of Cymrite is classified as having a mirror plane.