Category Archives: breccia

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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4x/0.25, breccia, lodranite, northwest africa, polarized, scope2, Tucsen C30 3MP sCMOS, zerene stacker

NWA 8251 Meteorite Thin Section

NWA 8251 Meteorite Thin Section

NWA 8251 Meteorite Thin Section

NWA 8251 Meteorite fragments contain brilliant green clinopyroxene crystals, which have earned it the nickname “Green-Eyed” Lodranite. This lodranite breccia creates a uniquely beautiful cross polarized thin section. The wide size, texture, color, and features of the individual grains which compose the breccia make this one of my absolute favorite thin sections to explore. Picture of the original fragment.

Pictures from PolandMET

Pictures from Meteorites USA

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