Card No: 12290       Created: 30/01/25    Last edition: 03/04/2026

Name: ZIRCOPHYLLITE
Specification: [1], structure type - astrophyllite tricl
Formula: K2Na(Fe2+,Mn)7Zr2Si8O26(OH)4F
Symmetry Class: triclinic
Space Group: P 1(-)
Unit Cell
Parameters:
a = 5.4470 | b = 11.9660 | c = 11.7890 | alpha = 112.9000 | beta = 94.7000 | gamma = 103.2000
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 676.41
Number of Atomic Position
per full Unit Cell
:
P/U = 55 Molar Volume, cm3/mol: Vm = 407.43
Number of Reflexes used in
Structure Determination
:

NR = 3657
X-ray density, g/cm3: p = 3.37
R-factor: R = 0.0379MU, 1/cm: µ = 234.523
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 69.685
Theta-Interval for CPDP: T/I = 1-45