The Meteoritical Bulletin, No. 100
Found: Jun 2009
Mass: 213.2 g
meteorite (feldspathic breccia)
Complete individual recovered by Luc Labenne in June, 2009.
Clast-laden vitric breccia consisting of fine-grained mineral debris
(mostly pyroxenes, olivine and anorthite) and polycrystalline igneous
clasts. Clast sizes to 2 mm. Mineral clasts include anorthitic plagioclase,
low-Ca pyroxene, olivine, spinel and rare kamacitic, chromite, and
troilite. Lithic clasts include rhyolite (composed of K-rich rhyolitic
glass with Ca-rich ferrolithic pyroxene microlites) and troctolite (composed of olivine,
plagioclase, and Cr-poor spinel). Metal grains are partially oxidized. Many
of the olivine grains are partially to totally altered by weathering.
Olivine (Fa8-27), Plagioclase (An95-99), augite (Fs21-29Wo8-11).
Bulk composition: (R. Korotev, WUSL):
24% Al2O3, 6.0% FeO, 9.1% MgO, 265 ppm Ni, 2.2 ppm
Sm, 5 ppb Ir, 1.4 ppm Th.
Achondrite (lunar, feldspathic breccia).
A total of 20.0 g is deposited at NHMD.