Raman Mangano-Calcite section from Langban Sweden.
See the
fluorescence of
this section
 Spot 1 is a clear non fluorescent crystal of calcite |
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Plane polarized image of the section. Crystal labeled 2 is forsterite, crystal 3 is magano calcite or dolomite. |
 The opaque crystals on this image are hausmanite, manganese oxide. |
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 Plane polarized view. Crystal 6 is forsterite, crystal 7 is dolomite or calcite. |
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 Crossed polars view. |
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 Spot 8 is a fluorescent crystal of dolomite or mangano calcite. The Raman spectrum is noisy due to the high fluorescence. |
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Reflection image of the fluorescent image above. Spectra in darker region 8 has been compared with lighter area 9. The spectra are similar, they indicate the presence of calcite or dolomite. |
View of the same spots 8 and 9 in plane polarized transmission with spectrum. |
 Other section of another mineral of the same location. This section contains much more opaque crystals type 1 (hausmanite) and less crystal 2 (forsterite). The fluorescent mangano calcite or dolomite (spot 2) is ubiquitous in this rock. |
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Raman spectra of forsterite coming from 2 pallasite meteorites, a forsterite macro crystal already analyzed and the crystal which appears in spot 6 above.
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