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Lunar Meteorite

Shişr 162

Oman

 

Shişr 162 in the desert

(photo credit: anonymous finder)

 

Shişr 162 in the lab

(photo credit: anonymous finder)

 

 

Chips of Shişr 162. Click on image for enlargement.

(photo credit: by Randy Korotev)

 

A slice of Shişr 162. The color difference between this photo and the one above is a lighting effect. Click on image for enlargement.
(photo credit: Randy Korotev)

 


Images of a thick (100 µm, top) and thin (35 µm, bottom) section of Shişr 162. Width: 13 mm. Click on image for enlargement.
(photo credit: Randy Korotev)

 

from The Meteoritical Bulletin, no. 99, Meteoritics & Planetary Science

Shişr 162

Zufar, Oman
Found: 17 Feb 2006
Mass: 5525 g

Lunar meteorite (feldspathic breccia)

 

History: One stone was discovered on a gravel plateau of Miocene limestone of Middle Fars group about 40 km NNE of Shişr.

Physical characteristics: Dark brown stone of 5525 g without fusion crust. Magnetic susceptibility log χ (×10-9 m3/kg) = 2.45.

Petrography: (R. Bartoschewitz, Bart.; P. Appel, B. Mader, Kiel) Breccia of dominantly anorthositic rocks and mineral fragments set in a fine-grained recrystallized matrix of anorthositic composition. Accessory minerals are Ni-rich iron, troilite, and chromite.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Fa17.8-26.4 (mg#(ol) = 73-81), FeO/MnO = 68.2; Fs16Wo15 (mg#(px) = 71-78); FeO/MnO = 50.4; An91.7-97.5; metal Ni 65-125 mg/g, Co 6-10 mg/g. Bulk composition (R. Korotev, WUSL): FeO 3.3 wt%, Sc 5.3 ppm, Sm 0.55 ppm, Th 0.16 ppm, Ni 180 ppm.

Classification: (R. Bartoschewitz, Bart.; R. Korotev, WUSL) Lunar feldspathic impact melt breccia

Specimens: A total of 20.0 g of sample is on deposit at Kiel. 10 g and 2 thin sections are on deposit at Bart, main mass anonymous.

 

Randy Says…

At 5.5 kg, it's big!

 

More Information

Meteoritical Bulletin Database

Shişr 162

Map

Schematic Map of the Find Locations of the Dhofar Lunar Meteorites

References

Garcia S., Gross J., and Korotev R. L. (2015) Shisr 162: A glimpse into lunar lithologies. 46th Lunar and Planetary Science Conference, abstract no. 2300.

Korotev R. L. (2011) Lunar meteorites from Antarctica and Oman (abstract). 74th Annual Meeting of the Meteoritical Society, abstract no. 5073. Lunar and Planetary Institute.

Korotev R. L. (2012) Lunar meteorites from Oman. Meteoritics & Planetary Science 47, 1365–1402. doi: 10.1111/j.1945-5100.2012.01393.x

Korotev R. L. (2017) Update (2012–2017) on lunar meteorites from Oman. Meteoritics & Planetary Science 52, 1251-1256.
All Korotev data on Omanian lunar meteorites.

Korotev R. L., Irving A. J., and Bunch T. E. (2012) Keeping Up With the Lunar Meteorites — 2012 (abstract). In Lunar and Planetary Science XLIII, abstract no. 1152, 43rd Lunar and Planetary Science Conference.

 

 

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Prepared by
: Randy L. Korotev
 
Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don't contact me about the meteorite you think you've found until you read this and this.


e-mail
korotev@wustl.edu

Last revised: 13-June-2017