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Thin Sections

Thin Section.   Angrite

TKW 454 grams. Fall not observed. First purchased June 2019, Ensisheim, France.

 

Steve writes:

In her August 30, 2020 MPOD post, Anne Black provided a white light and a corresponding xpol image of a portion of a thin section made from the NWA 12774 angrite. My thin section of that meteorite is smaller than the one Anne included as an overlay on her photo, but I thought folks still might enjoy zooming and panning around additional areas to see the breadth of unusual features in this interesting meteorite.

You can see a high resolution image of my entire slide here (the slight exposure gradient from left to right is an artificial artifact of the software I was using for doing my early stitches):

GigaPan

If you haven’t used GigaPan before, go full screen by clicking on the diagonal arrows at the right of the image, then pan around with your mouse and zoom in and out with its scroll wheel.

In thin section, NWA 12774 is very different from my other angrites. A few interesting areas are shown in Photos 1 through 5.

  Click to view larger photos     #1     #2     #3     #4     #5