Troilite, chromite and ilmenite. Alta'ameem Meteorite. Iraq

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Troilite (brown, high reflectance, right) has crystallized around euhedral pyroxene crystals (right). Pyroxene (grey, centre) shows parallel cleavage and faint internal reflections. Chromite (light grey, centre) encloses a small ilmenite lath (brown, low reflectance, centre) oriented cast-west and both central chromite crystals show faint diffuse brown internal reflections.

Polished thin section, plane polarized light, x 160, oil

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