Chemistry:Hörnesite

From HandWiki
Hörnesite
General
CategoryArsenate minerals
Formula
(repeating unit)
Mg
3
(AsO
4
)
2
 · 8H2O
Strunz classification8.CE.40
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupC2/m
Unit cella = 10.262, b = 13.442
c = 4.741 [Å]; β = 104.9°; Z = 2[1]
Identification
References[1]

Hörnesite is an arsenate mineral bearing magnesium. It is a member of the vivianite group of minerals, and constitutes the magnesium endpoint of a mineral series with nickel or cobalt replacing the magnesium, ending in annabergite or Erythrite.

References

  1. 1.0 1.1 Page Hörnesite: Mineral information, data and localities on "mindat.org". Hudson Institute of Mineralogy. https://www.mindat.org/min-1931.html.