Formula :
(Fe2+,Mn2+)Al[(OH)2/PO4] * H2O
System: orthorhombic Hardness:5 Rarity:rare
Strunz id:VII/D.14-10 -
PHOSPHATES, ARSENATES and VANADATES
Name origin: Named in 1823 by Henry J. Brooke in honor of John George Children [May 18, 1777 – January 1, 1852 Halstead, Kent, England, UK), English chemist, mineralogist, and zoologist; Keeper of minerals at the British Museum of Natural History.
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