Delvauxite
| Delvauxite | |
|---|---|
| General | |
| Category | Phosphate minerals |
| Formula (repeating unit) | CaFe4(PO4,SO4)2(OH)8•(4-6)H2O |
| Identification | |
| Color | Yellow to brown to dark brown |
Delvauxite, also known as borickite, is a yellow to brown to dark brown amorphous mineral, sometimes forming a botryoidal mass.[1] Its chemical formula is CaFe4(PO4,SO4)2(OH)8•(4-6)H2O.[2] It may sometimes form stalactites.
It was first described in 1838 by Belgian chemist, Dumont and dedicate to J.S.P.J. Delvaux de Fenffe (1782–1863).[1] It was found in Bernau, Liege, Belgium and Stredocesky, Czech republic.[2]
References
- ^ a b http://www.webmineral.com/data/Delvauxite.shtml Webmineral
- ^ a b http://rruff.geo.arizona.edu/doclib/hom/delvauxite.pdf Handbook of Mineralogy
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