Castellaroite Explained

Castellaroite
Formula:Mn3(AsO4)2•4H2O
Imasymbol:Ctr
Color:Colorless
Luster:Vitreous, Silky
Gravity:3.14

Castellaroite is a rare arsenate mineral with formula Mn3(AsO4)2•4H2O. It is related to the phosphate mineral metaswitzerite. Castellaroite is monoclinic, with space group P21/n. The other natural manganese arsenate hydrate is manganohörnesite, which is an octahydrate.[1] [2] [3]

Notes and References

  1. Kampf, A.R., Cámara, F., Ciriotti, M.E., Nash, B.P., Balestra, C., and Chiappino, L., 2015. Castellaroite, IMA 2015-071. CNMNC Newsletter No. 28, December 2015, 1862; Mineralogical Magazine 79, 1859–1864
  2. Web site: Castellaroite: Castellaroite mineral information and data . Mindat.org . 2016-03-04.
  3. Web site: Manganohörnesite: Manganohörnesite mineral information and data . Mindat.org . 2016-03-04.

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