NWA 2999 Meteorite Thin Section

Thin section specimen of NWA 2999 in cross polarized light. Description:

Although most angrites have textures indicative of rapid cooling from melts, NWA 2999 has an overall plutonic, polygonal-granular texture (similar to Angra dos Reis and LEW 86010), but with distinctive large anorthite, spinel and recrystallized olivine porphyroclasts (up to 6 mm across) and 10-20 μm wide, discontinuous anorthite coronas around spinel grains (to our knowledge a feature unique among meteorites). (Source)

Additional resources:

NWA 2999, A Unique Angrite with a large Chondritic Component

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