Category Silicate Crystal system Orthorhombic | Formula
(repeating unit) Na2ZrSi6O12(OH)6 Space group Pnca | |
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m) Unit cell a = 13.96, b = 14.89,
c = 7.44 [Å] (approximated), Z = 4 | ||
Hydroterskite is a rare zirconium silicate mineral, related to terskite (hence its name), with the formula Na2ZrSi6O12(OH)6. It was discovered in the Saint-Amable sill near Montréal, Québec, Canada. It is hydrous, when compared to terskite. Chemically similar minerals include litvinskite and kapustinite.
References
Hydroterskite Wikipedia(Text) CC BY-SA