Card No: 12125       Created: 26/09/24    Last edition: 02/04/2026

Name: KARWOWSKIITE
Specification: [1], DF
Formula: Ca9MgFe2+0.5[]0.5[PO4]7
Symmetry Class: trigonal
Space Group: R 3c
Unit Cell
Parameters:
a = 10.3375 | c = 37.1443
Number of Formula Unit: Z = 6Unit Cell Volume, Å3: Vc = 3437.59
Number of Atomic Position
per full Unit Cell
:
P/U = 294 Molar Volume, cm3/mol: Vm = 345.10
Number of Reflexes used in
Structure Determination
:

NR = 1366
X-ray density, g/cm3: p = 3.09
R-factor: R = 0.0212MU, 1/cm: µ = 354.243
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 114.637
Theta-Interval for CPDP: T/I = 1-45