Hydroterskite Explained

Hydroterskite
Category:	Silicate
Formula:	Na2ZrSi6O12(OH)6
Imasymbol:	Hter^[1]
Class:	Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Symmetry:	Pnca
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.^[2] It is hydrous, when compared to terskite.^[3] Chemically similar minerals include litvinskite and kapustinite.^{[4] [5]}

Notes and References

1. Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
2. Grice, J.D., Rowe, R., and Poirier, G., 2015. Hydroterskite, IMA 2015-042. (2015) Hydroterskite, IMA 2015-042. CNMNC Newsletter No. 27, October 2015, 1224; Mineralogical Magazine 79, 1229-1236
3. Web site: Terskite: Terskite mineral information and data . Mindat.org . 2016-03-12.
4. Web site: Litvinskite: Litvinskite mineral information and data . Mindat.org . 2016-03-12.
5. Web site: Kapustinite: Kapustinite mineral information and data . Mindat.org . 2016-03-12.