Card No: 12003       Created: 14/04/24    Last edition: 27/03/2026

Name: TREMOLITE
Specification: [18], at 29.2 GPa
Formula: Ca2Mg5Si8O22(OH,F)2
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 8.8080 | b = 16.7120 | c = 4.9410 | beta = 105.1000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 702.30
Number of Atomic Position
per full Unit Cell
:
P/U = 78 Molar Volume, cm3/mol: Vm = 211.51
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.85
R-factor: -MU, 1/cm: µ = 169.399
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 44.016
Theta-Interval for CPDP: T/I = 1-45