Card No: 12153       Created: 1/08/24    Last edition: 27/03/2026

Name: TSEPINITE-Na
Specification: [2], DF
Formula: (Na,K)1.2[H2O]5(K,Ba,Ca,Na)(Ti,Nb)4[(Si4O12](O,OH)4
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 14.5086 | b = 14.2174 | c = 7.8712 | beta = 117.1000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1445.13
Number of Atomic Position
per full Unit Cell
:
P/U = 122 Molar Volume, cm3/mol: Vm = 435.23
Number of Reflexes used in
Structure Determination
:

NR = 3526
X-ray density, g/cm3: p = 2.68
R-factor: R = 0.0437MU, 1/cm: µ = 200.993
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 74.897
Theta-Interval for CPDP: T/I = 1-45