Dear Thomas Klein,
Osumilite itself looks like cordierite or feldspar, BUT without
twinning and pleochroism is yellow to pale yellow and it is distributed
in the whole grain (different from cordierite that has the pleochroic
halos). Some garisn has a good clivage too.
Renato
thomas Klein wrote:
> Does anyone know the thin section characteristics of
> minerals of the osumilite group? Which minerals look
> similar?
>
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