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Lunar Meteorite: Dhofar 081, 280, 910, & 1224 (paired stones)Oman |
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Slab of Dhofar 081 with millimeter ticks
for scale.
(Photo of Randy Korotev. Click on image for enlargement.) |
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Slab of Dhofar 280 with millimeter ticks
for scale. (Photo of Randy Korotev. Click on image for enlargement.) |
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| Slab of Dhofar 910 with millimeter ticks
for scale. (Photo of Randy Korotev. Click on image for enlargement.) |
from The
Meteoritical Bulletin, No. 85, Meteoritics & Planetary Science
36, A293-A322 (2001)
Dhofar 08119°19.32'N 54°46.96'EOman Found 1999 November 29 Lunar meteorite (feldspathic fragmental breccia) A brownish gray stone of 174 g covered by fusion crust was found in the Dhofar region of Oman. Classification and description (A. Greshake, MNB): a feldspathic fragmental breccia consisting of clasts of various lithologies embedded into a devitrified fine-grained matrix; schlieren and vesicles are abundant; feldspar, An96.5-99.5; pyroxene, Fs21.9-46.2 Wo3.0-41.4; olivine, Fa29.3-47.8; augites are more abundant than Ca-poor pyroxenes and often contain pigeonite exsolution lamellae; accessory phases are Fe-Ni metal, ilmenite, and Ti-Cr-rich spinel; crystalline fragments include large gabbroic anorthosites, high-Al highland basalts, microporphyritic impact melt breccias, dark fine-grained impact melt breccias, and large cataclastic feldspar; no regolith components, e.g., glass spherules, have been identified; low bulk concentrations of MgO and FeO reflect low abundance of mafic components. Specimens: 19.8 g plus two thin sections, MNB; ~20 g, Mün; main mass with anonymous finder. |
from The
Meteoritical Bulletin, No. 85, Meteoritics & Planetary Science
36, A293-A322 (2001)
Dhofar 28019°19.6'N 54°47.0'EOman Found 2001 April 14 Lunar meteorite (anorthositic fragmental breccia) A gray stone weighing 251.2 g was found in the Dhofar region of Oman. Classification and mineralogy (M. Nazarov, Vernad): fusion crust present; meteorite is a clast-rich fragmental breccia containing numerous mineral fragments and clasts of feldspathic rocks embedded in a glass-rich matrix; schlieren and vesicles are abundant; feldspar, An91-98; pyroxene, En58-75Wo4-5; olivine, Fo60-77 (Fe/Mn~99 atomic); accessory minerals are Ti-rich chromite, ilmenite, troilite, and Fe-Ni metal; terrestrial weathering not significant. Dhofar 081 and Dhofar 280 are probably paired because the stones were found close to one another and are similar in texture and mineral chemistry. Specimens: type specimen, 50 g plus two sections, Vernad; main mass with anonymous finder. |
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from The
Meteoritical Bulletin, no. 89, Meteoritics & Planetary Science
40, A201-A263 (2005)
Dhofar 122419°19.605'N 54°46.507'EOman Found 2003 September 28 Lunar meteorite (feldspathic regolith breccia) One 4.57 g stone, partly covered with fusion crust, was found by an anonymous prospector near the find locations of the lunar meteorites Dho 081/280/910 and Dho 302/908/1085 on a desert plateau near Wadi Quitbit, Dhofar, Oman. It was subsequently purchased by N. Classen. Classification and mineralogy (A. Irving and S. Kuehner, UWS): glass-rich, melt-matrix highland regolith breccia containing sparse, small mineral and lithic clasts. Minerals include exsolved pigeonite, augite (Fs21.4Wo38.3 to Fs24.1Wo35.0, FeO/MnO = 54.5 - 60.7), orthopyroxene (Fs27.6Wo9.4 to Fs37.1Wo3.0, FeO/MnO = 49.8 - 50.1), olivine (Fa27.3-46.7, FeO/MnO = 80-105), anorthite (An99.5-99.6), metal (10 wt.% Ni and 40 wt.% Ni), ilmenite, Ti-Al-bearing chromite and troilite. The largest lithic clast is a troctolite composed of olivine+anorthite+ilmenite. This specimen is probably paired to Dho 081, Dho 280 and Dho 910 found nearby. Specimens: type specimen, 1.19 g, and one polished thin section, UWS; main mass, Classen. |
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