NWA 10681 (Monomict Eucrite Breccia)

Two stones totaling 244g were purchased out of Morocco in February of 2016. A sample was sent to Dr. Anthony Irving for classification and determined to be a Monomict Eucrite Breccia.  The main mass which weighs 203.94g and is visually quite stunning as a complete stone. The lighter Eucritic clasts can be seen scattered among the matrix without cutting into the stone. I have thus decided to keep this stone whole to sell as a complete specimen.

UPDATE- I prepared several small slices with the remaining endcut of the sample that was submitted for classification. Each slice is rough polished on one side, and mirror polished on the other. Most has small vesicles throughout the matrix, and several slices have a large one towards the tops of the slices. Each slice will come in a padded plastic meteorite box. IF THE LARGER MAIN MASS DOES NOT SELL, LARGER SLICES WILL FOLLOW!

Petrography as follows:

Monomict breccia consisting of closely packed, fine grained basaltic clasts in a sparse dark matrix. Minerals are exsolved pigeonite, calcic plagioclase, Ti-chromite, ilmenite, silica polymorph, plus secondary calcite and barite. Orthopyroxene host (Fs59.6-61.3Wo5.6-2.5.6, FeO/MnO = 30-31, N = 2), clinopyroxene exsolution lamella (Fs26.2Wo43.9, FeO/MnO = 29), clinopyroxene host (Fs26.4Wo43.9, FeO/MnO = 26).

A direct link to the Meteoritical Bulletin can be found here.

 

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