10x/0.25, achondrite, breccia, LMScope, mars, Nikon D810, northwest africa, polarized, scope2, zerene stacker

NWA 11220 Meteorite Thin Section

NWA 11220 Meteorite Thin Section

NWA 11220 Meteorite Thin Section

What a fascinating meteorite! NWA 11220, just like the previously posted NWA 8171, is a Martian Basaltic Breccia. It shares many of the same characteristics and the clasts have similar appearances. In the thin section posted here, readers can explore some eerily “alien” features which seem unique to this particular class of Martian meteorites. The large inclusion on the left side of the thin section contains fascinating little globular specks. Additional clasts contain shapes and features which pose numerous questions, such as what kind of “natural” processes could have formed them? Enjoy!

Information on Martian Basaltic Breccias at Meteorite Studies.

Information on NWA 11220 and YouTube videos of a CT Scan of the meteorite.

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4x/0.25, breccia, LMScope, lunar, Nikon D810, northwest africa, polarized, scope2, zerene stacker

NWA 10203 Meteorite Thin Section

NWA 10203 Meteorite Thin Section

NWA 10203 Meteorite Thin Section

This thin section of NWA 10203 shows a wide range of fascinating features. As described on the Meteoritical Bulletin, this lunar breccia contains four lithologies:

1. Unbrecciated olivine gabbro with zoned clinopyroxene.
2. Fragmental anorthositic gabbro breccia.
3. Fragmental gabbroic breccia with approximately equal proportions of plagioclase, pyroxene and olivine.
4. Shock melt veins and pools.

There appears to be a least two of these lithologies in this specimen.

More information on the meteorite and its pairings: Northwest Africa 10149 clan.

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4x/0.25, breccia, carbonaceous, chondrite, LMScope, Nikon D810, northwest africa, polarized, scope2, zerene stacker

NWA 10214 Meteorite Thin Section

NWA 10214 Meteorite Thin Section

NWA 10214 Meteorite Thin Section

This thin section of NWA 10214, viewed in cross polarized light, was created from the fragment pictured below — Side B. The idea was to get a piece which contained at least two distinct types of matrix. The NWA 10214 meteorite contains multiple lithologies and it is unclear which chondritic classes are contained in this particular fragment.

For further information please read the Meteorite Times’ excellent article on NWA 10214.

Side A - eegooblago.com

Side A – eegooblago.com

Side B - eegooblago.com

Side B – eegooblago.com

Animated GIF

Animated GIF

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