NWA 6290, Strange Diogenite Breccia, Endcut, 2.85g

$20.00

NWA 6290 is a fascinating brecciated diogenite (orthopyroxenitic diogenite). This meteorite takes a high polish that shows off shiny bands/streaks of inclusion material, polycrystalline clasts, and pigeonite. There are also nickel-poor metal inclusions, olivine, and troilite. This meteorite was purchased out of Morocco and classified in 2010 by Dr. Anthony Irving.

The specimen being offered here is an endcut with a polished face that weighs 2.85 grams.

Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include a labeled gemjar for safe storage.

From the Meteoritical Bulletin entry on NWA 6290 :

Northwest Africa 6290 (NWA 6290)

 

(Northwest Africa)

 

Purchased: 2010 Jun

 

Classification: HED achondrite (Diogenite)

 

Petrography: (A. Irving and S. Kuehner, UWS): Fresh polymict breccia composed predominantly of distinctly "milky" orthopyroxene fragments and some polycrystalline clasts, with sparse pigeonite, olivine (bimodal in composition), calcic plagioclase, chromite, troilite and Ni-poor metal. Most of the orthopyroxene is charged with microscopic inclusions of chromite and troilite, which render it pale tan-colored in thin section.