Author(s): BENY C.
Date: 16 january 92
file name: ALLAN2.S00 pdf
Recording laboratory: Lab. mixte (BRGM-CNRS- Univ. OrlÈans) de spectromÈtrie Raman
References:
2nd file name:
Structural formula: (Ce,Ca,Y)2(Al,Fe)3(SiO4)3(OH)
Name: Allanite
Family: Sorosilicates
Group: Epidote
Origin: natural [x] locality: synthetic [_] method: P: T:
Solid: crystal [x] powder [_] glass [_]
Fluid: liquid [_] gas [_]
Preparation: Thick section [x] thin section [_] raw sample [_]
Colour: brown dark opaque [x] transparent [_] 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: 500 mW, at sample:
Raman scattering efficiency: *
Spectral resolution: 5 cm-1
Calibration: Ar+: 77 cm-1
Spectrometer: JOBIN-YVON; model: U1000 macro [_] micro [x] objective: x50gf; N.A.: monochannel [x] multichannel [_]
scan rate: cm-1/mn
step: 1 cm-1
counting time: 1 s
integration time: s
number of scans: 2
accumulations:
Reference:
Crystal system:Mon.;
Z:;
space group:
Factor group analysis:
Raman shift (cm-1): 3353 3140 2580 2380 1062 1038 1005 977 966 874 693 685 669 581 496 460 420 382 359 347 331 321 290 281 223 189 133 122
Observations: Spurious lines from objective: 915 - 843 cm-1