Author(s): MAESTRATI R.
Date: 27 june 86
file name:
Recording laboratory: M.L.R.O. UniversitÈ de Nantes
References: MAESTRATI 941U
2nd file name:
Structural formula: Fe3Al2(SiO4)3
Name: Almandine
Family: Orthosilicates
Group: Garnet
Origin: natural [x] locality: synthetic [_] method: P: T:
Solid: crystal [x] powder [_] glass [_]
Fluid: liquid [_] gas [_]
Preparation: Thick section [_] thin section [_] raw sample [x]
Colour: red opaque [_] transparent [x] translucent [_]
Conditions of measurement: room P room T
Polarization setting: PORTO ( ) VV [_]; VH [_]; none [x]
Laser: Ar+ 0 = 514.5 nm;
Sample photosensibility:
Laser power: at laser: 600 mW, at sample:
Raman scattering efficiency: ***
Spectral resolution: 13.13 cm-1
Calibration: Si: cm-1; Hg: cm-1; diamond: 1332 cm-1;
Spectrometer: DILOR; model: Microdil 28 macro [_] micro [x] objective: x100; N.A.: monochannel [_] multichannel [x]
scan rate: cm-1/mn
step: cm-1
counting time: s
integration time: 5 s
number of scans:
accumulations: 15
Reference:
Crystal system:Cub.;
Z:;
space group:
Factor group analysis:
Raman shift (cm-1): 1048 916 860 627 580 557 500 372 345 328 315 216 169
Observations: