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Dhofar 309 | |||||||||||||||||
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Basic information | Name: Dhofar 309 This is an OFFICIAL meteorite name. Abbreviation: Dho 309 Observed fall: No Year found: 2002 Country: Oman Mass: ![]() | ||||||||||||||||
Classification history: |
This is 1 of 82 approved meteorites classified as Lunar (anorth). [show all] Search for other: Lunar meteorites | ||||||||||||||||
Writeup![]() |
Writeup from MB 87:
Dhofar 309 Oman Found 2002 January 14 Lunar meteorite (anorthositic impact melt breccia) A grey, partly fusion-crusted 81.3 g stone was found in the Dhofar region of Oman. Classification and mineralogy (S. Demidova, Vernad; G. Kurat, NHMV): the meteorite is a clast-poor impact melt breccia; mineral fragments and lithic clasts are embedded in a matrix of devitrified glass. The clast population is dominated by granulite clasts of mainly anorthositic and troctolitic composition; fragments of possible pristine rocks and single mineral fragments are less common. Mineral compositions: plagioclase An93–98Or0.1–0.4; olivine Fo75–89 (atomic Fe/Mn ≈ 79); orthopyroxene En80–86Wo2–5; clinopyroxene En46–82Wo5–46; accessory minerals are Ti-poor chromite and Cr-pleonaste, ilmenite (4–9 wt% MgO), troilite, and FeNi metal. The composition (wt%) of the impact melt matrix is MgO 6.2, CaO 16.1, Al2O3 29.1, SiO2 44.3, FeO 3.1; terrestrial weathering is not significant, although celestite and calcite are present in cracks. Dhofar 309 is different in texture and mineral chemistry from Dhofar 081/280, 302, 303, 305, 306, 310 found nearby. However, the meteorites may be paired. Specimens: 16.5 g plus two thin sections, Vernad; main mass with anonymous finder. | ||||||||||||||||
Data from: MB87 Table 4 Line 12: |
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Institutions and collections |
NHMV: Naturhistorisches Museum, Burgring 7, 1010 Wien, Austria, Austria; Website (institutional address; updated 18 Jan 2019) Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
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Geography:![]() |
Statistics: This is 1 of 2167 approved meteorites from Zufar, Oman (plus 24 unapproved names) This is 1 of 4002 approved meteorites from Oman (plus 436 unapproved names) | ||||||||||||||||
Proximity search: |