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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10x/0.25, chondrite, LMScope, metachondrite, Nikon D810, northwest africa, polarized, scope2, zerene stacker

NWA 10690 Meteorite Thin Section

This thin section of NWA 10690 gives a unique view of the transformations and processes occurring in ancient times. Within the large grains of similar color can be found smaller grains of various colors, shapes, and sizes which imply internal changes occurring within the source body. Paired with NWA 7030, it belongs to the LL7 class of meteorites, contains sanidine (on Earth found in felsic volcanic rocks like obsidian), and gives the impression of being a fascinating sample from the early solar system. See the links below for further information:

Meteorite Studies – NWA 7030

Nature’s Vault – NWA 7030

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4x/0.25, calcium-aluminium-rich inclusion, carbonaceous, chondrite, LMScope, Nikon D810, northwest africa, polarized, scope2, zerene stacker

NWA 2364 Meteorite Thin Section

Thin section of NWA 2364. The matrix is very dark, an attribute of its carbonaceous composition. It contains some nice CAIs and chondrules. Readers should recall that some of this meteorite’s CAIs are the oldest dated matter in the solar system. Check out the links below to see the overlay of this thin section with the surface photos of the same fragment for awesome before and after comparisons.

Link to manually change the transparency of the thin section overlaid on the surface

YouTube video of a slideshow showing the transparency overlay

GIMP file allowing users to change the transparency overlay

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