Card No: 12386       Created: 20/10/25    Last edition: 05/04/2026

Name: SANIDINE
Specification: [20], structure type - sanidine, analogue
Formula: (K,Rb)GaSi3O8
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 8.7650 | b = 13.0830 | c = 7.2310 | beta = 116.2000
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 744.07
Number of Atomic Position
per full Unit Cell
:
P/U = 52 Molar Volume, cm3/mol: Vm = 112.04
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.02
R-factor: -MU, 1/cm: µ = 187.918
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 62.155
Theta-Interval for CPDP: T/I = 1-45