Mineral Factbook

Childrenite

Fe2+Al(PO4)(OH)2·H2OIMA symbol: Chdgrandfathered

Childrenite is a phosphate, arsenate, or vanadate mineral with the formula Fe2+Al(PO4)(OH)2·H2O, crystallizing in the orthorhombic system. It has a calculated density of 3.168 g/cm3. Its streak is white.

Photos

Childrenite specimen photo
Strubbl · CC BY-SA 4.0 · Commons
Childrenite specimen photo
Strubbl · CC BY-SA 4.0 · Commons
Childrenite specimen photo
Strubbl · CC BY-SA 4.0 · Commons
Childrenite specimen photo
Strubbl · CC BY-SA 4.0 · Commons

Crystallography

Crystal systemorthorhombic crystal systemWikidata (CC0)
Space groupB b e 2
Cell (Å, °)a = 10.395, b = 13.394, c = 6.918; α = 90, β = 90, γ = 90
Cell volume963.197 ų, Z = 8
Axial ratios0.7761:1:0.5165calculated from COD 9009311
Source structureCOD 9009311 (Neues Jahrbuch fur Mineralogie, Monatshefte, 1984) — 1 of 2 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.8151.5216.6974.3672.3812.812
I/I₀10050.94435.533.232.5

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9009311; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)3.168 g/cm³calculated from COD 9009311
Streak
whitesingle sourceWikidata (CC0)

Classification

Nickel-Strunz (10th)8.DD.20Wikidata (CC0)
Nickel-Strunz (9th)8.DD.20Wikidata (CC0)
Dana (8th)42.7.1.1Wikidata (CC0)