Card No: 11861       Created: 13/06/23    Last edition: 27/03/2026

Name: PLEYSTEINITE
Specification: [1]
Formula: [[H2O]0.5K0.5]2Mn2Al3[PO44F2[H2O]10 · 4H2O
Symmetry Class: orthorhombic
Space Group: P bca
Unit Cell
Parameters:
a = 10.4133 | b = 20.5242 | c = 12.2651
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 2621.35
Number of Atomic Position
per full Unit Cell
:
P/U = 172 Molar Volume, cm3/mol: Vm = 394.73
Number of Reflexes used in
Structure Determination
:

NR = 1692
X-ray density, g/cm3: p = 2.30
R-factor: R = 0.0540MU, 1/cm: µ = 111.781
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 48.578
Theta-Interval for CPDP: T/I = 1-45