Delvauxite

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 CaFe
4
(PO
4
,SO
4
)
2
(OH)
8
•(4-6)H
2
O
.[2] and it may sometimes form stalactites.

Delvauxite
General
CategoryPhosphate minerals
Formula
(repeating unit)
CaFe
4
(PO
4
,SO
4
)
2
(OH)
8
•(4-6)H
2
O
Identification
ColorYellow to brown to dark brown

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

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