Card No: 12321       Created: 2/07/25    Last edition: 05/04/2026

Name: MAGNESIOHORNBLENDE
Specification: [8], DF
Formula: (Na,K)0.27(Ca,Fe)2(Mg,Fe)5(Al,Si)8O22(OH)2
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 9.8308 | b = 18.0659 | c = 5.2968 | beta = 104.8000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 909.64
Number of Atomic Position
per full Unit Cell
:
P/U = 96 Molar Volume, cm3/mol: Vm = 273.95
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.14
R-factor: -MU, 1/cm: µ = 201.757
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 64.247
Theta-Interval for CPDP: T/I = 1-45