Lunar meteorite (feldspathic breccia)
History: Complete individual recovered by Luc Labenne in June, 2009.
Petrography: (H. Haack, NHMD). 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.
Geochemistry: 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.
Classification: Achondrite (lunar, feldspathic breccia).
Specimens: A total of 20.0 g is deposited at NHMD.
Dhofar 1528 is a feldspathic lunar meteorite. I suspect that it is unpaired with any of the other lunar meteorite from Oman, despite being found <10 km from Dhofar 025 and its pairs.
Meteoritical Bulletin Database
Korotev R. L. (2012) Lunar meteorites from Oman. Meteoritics & Planetary Science 47, 1365-1402.
Korotev R. L. (2017) Update (2012–2017) on lunar meteorites from Oman. Meteoritics & Planetary Science 52, 1251-1256.
Wittmann A., Korotev R. L., and Jolliff B. L. (2015) Lunar mantle spinel in Dhofar 1528? 46th Lunar and Planetary Science Conference, abstract no. 1460.
Wittmann A. and Korotev R. L. (2016) Lunar mantle rocks in Dhofar 1528. 79th Annual Meeting of the Meteoritical Society, abstract no. 6019.