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NWA 7034 "The Black Beauty" Unique Martian Meteorite
Bilanga, Diogenite
Camel Donga, Eucrite
NWA 725, Winonaite
NWA 2751, Polymict Eucrite
NWA 2752, Howardite
NWA 2975, Shergottite (Mars)
NWA 3197, Anomalous Howardite
NWA 5363, Ungrouped Achondrite
NWA 6470, Lunar
NWA 7022, Lunar
Tissint, Shergottite (Mars)
Tissint fragments (Mars)
Zaklodzie, Ungrouped Enstatite Achondrite
Bilanga, Diogenite
The Bilanga Diogenite fell on October 27, 1999 amongst and between the villages of Bilanga-Yanga and Gomposago, in Burkina-Faso.  The fall was accompanied by the sound of several loud detonations, but the fireball was obscured by clouds.  The locals heard the reports associated with the fall and were pelted with rocks from the sky soon afterwards.  Dealers purchased approximately 25 kilograms of the meteorite from locals, and subsequent work on the meteorite showed it to be a monomict diogenite breccia composed primarily of orthopyroxene. 

Here's a copy of an LPSC abstract describing the fall: http://www.lpi.usra.edu/meetings/lpsc2002/pdf/1338.pdf

Bilanga is one of the eleven witnessed diogenite falls, and its availability has remained next to nil for the past few years.  Online prices that I was able to find ranged from $50/g to over $100/g.  The only other diogenite fall available in any quantity is Johnstown, and good luck finding that for under $250-300 per gram. 

11.969 grams - $475






This 1/4 cut exhibits Bilanga's strange texture, with some orthopyroxenes rimmed with fine veins of metallic Fe-Ni.  One side is covered with finely textured primary crust and one smaller side has patchier secondary crust (3rd photo, far right).  Minor chromite is present - the largest of which is the dark spot visible on the top-left edge of the last photo.  This specimen is a fine example of the fall, and a stunning example of a diogenite. 
11.969 grams - $475
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