http://webmineral.com/data/Vesuvianite.shtml

A type of garnet perhaps, or pyroxene

or http://www.webmineral.com/data/Omphacite.shtml

Also consistant with augite and pidgeonite.

Thanks you. I think it cannot be garnet. However the composition of inclusions differs from those pyroxenes in the rock. Inclusions are enriched in Al2O3 (~ 2 times).

How about being remnant of the primary melt trapped in the spinels?? How do you think??

It's very difficult to guess among the numerous minerals without specific basic information! Do you have any detailed information, such as:

Is this inclusion consisted of a single crystal, vitreous, or multiple grains?

What is the crystal feature?

What is the color?

Does your chemical compositions obtained by EDS?

Do you have any XRD data?

It could be a melilite group member with a composition of (Ca0.6Mg1.2Fe0.27Al0.25)Si2O7

I do not think it can be melilite. It has comparatively higher SiO2 and lower Al2O3 rather than melilite.

No other idea!!?

It is an amphibole in the CaO content

Thank you Victor and other friends.

You are right but it is OH free (Sum of oxides ~ 100wt%).

it is alike cpx but contain high Al , and similar to amphibole but OH free. I don't know if it is a real mineral or a common mineral. Can it be a fluid or melt inclusion?How do you think?

I'd like to add there are oxyamphiboles which are virtually free in H2O. For example - oxykaersutite. The same concerns also to some micas: oxykinoshitalite, oxyphlogopite. Of course, it may be a glass of silicate melt inclusion. But picture does not show phase composition. It needs BSE image or high magnification photo to indicate the presence of gas bubble in "glass". But if the rock is holocrystalline, the presence of glassy inclusions is very problematic.

Thank you Charles.

It cannot be chromite since it is extremely in Cr content.