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| Sayh al Uhaymir 562 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Sayh al Uhaymir 562 This is an OFFICIAL meteorite name. Abbreviation: SaU 562 Observed fall: No Year found: 2008 Country: Oman Mass:  772 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 127 approved meteorites classified as Eucrite-unbr. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||
| Comments: | Approved 27 Jul 2013 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 102:
Sayh al Uhaymir 562 (SaU 562) 20°59’30.02"N, 57°11’48.33"E Al Wusta, Oman Found: 17 Apr 2008 Classification: HED achondrite (Eucrite, unbrecciated) Physical characteristics: (L Garvie, ASU) Single stone. Lacks fusion crust. Sawn surface shows medium-grained mosaic of approximately equal proportions of anhedral to bladed, white plagioclase (to 3 mm) and honey-brown, anhedral, granular pyroxene (to 1.5 mm) crystals. Petrography: (Andrew Foreman, Ryan Zeigler, WUSL) The meteorite consists of feldspar and exsolved pyroxene phenocrysts. Very minor olivine present. Accessories include silica, chromite, and ilmenite. Troilite blebs fill some annealed shock fractures within plagioclase. Pigeonite is the original igneous pyroxene, which has subsequently exsolved augite, with parallel exsolution lamellae ranging from very fine (sub-μm to 2 μm width) to coarse (5 μm). Plagioclase 0.5 to 3 mm, and pyroxene 0.5 to 1.5 mm. Geochemistry: (Andrew Foreman, Ryan Zeigler, WUSL) Feldspar An87.3-88.9Ab10.6-12.2; augite Fs47.6-35.5Wo22.5-32.3, Fe/Mn=27.8-35.6; pigeonite Fs62.7-51.3Wo4.6-14.6, Fe/Mn=25.7-33.5; olivine Fa75.7, Fe/Mn=51.5. INAA of an 84-mg sample gives 20.8% FeO, Sc 25 ppm, Co 4.4 ppm, La 0.87 ppm, Sm 0.93 ppm, Eu 0.54 ppm, and Yb 1.6 ppm. Sr 130±30 ppm, which is very low for a meteorite from Oman. Specimens: 20.1 g ASU | ||||||||||||||||||||||||||||||
| Data from: MB102 Table 0 Line 0: |
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| Institutions and collections |
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012) |
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| References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography:
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Statistics: This is 1 of 1756 approved meteorites from Al Wusta, Oman (plus 75 unapproved names) This is 1 of 4001 approved meteorites from Oman (plus 436 unapproved names) | ||||||||||||||||||||||||||||||
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