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Jiddat al Harasis 838
Basic information Name: Jiddat al Harasis 838
     This is an OFFICIAL meteorite name.
Abbreviation: JaH 838
Observed fall: No
Year found: 2003
Country: Oman
Mass:help 34.4 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Lunar
Recommended:  Lunar    [explanation]

This is 1 of 89 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 20 Sep 2015
Writeuphelp
Writeup from MB 104:

Jiddat al Harasis 838 (JaH 838)        19°22.044’N, 55°28.855’E

Al Wusta, Oman

Find: 2003 Feb 28

Classification: Lunar meteorite

History: One stone of 34.36 g was discovered about 28 km south of Al Ghaftain on a desert expedition on Feb. 28, 2003.

Physical characteristics: (R. Bartoschewitz, Bart) The meteorite lacks an obvious fusion crust but has the frosted, ablated exterior typical of Omani lunar stones. The interior is black-gray with many white, brown, and gray inclusions. Terrestrial weathering is negligible.

Petrography: (R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel) Fragmental breccia composed of a variety of lithic clasts and mineral fragments of plagioclase, augite, pigeonite, poor-Ca pyroxene, and olivine set in a fine-grained matrix. Lithic clasts include anorthosite, fragmental breccia, gabbro, norite, basalt, pyroxenite, and regolith (chondritic and lunar metal; HASP spherule) set in a fine-grained dark gray matrix, and with Ni-iron, troilite, pyrrhotine, pentlandite, ilmenite, chromite, zirconolite, baddeleyte, and zircon.

Geochemistry: (R. Bartoschewitz, Bart., P. Appel and B. Mader, Kiel) Fa39.7 (mg# = 74-53, Fe/Mn = 90, n=3); low-Ca pyroxene Fs56Wo3 (mg# = 51-32); pigeonite Fs36Wo11 (mg# = 36-58, n=13); subcalcic augite Fs32Wo17 (n=1); augite Fs22Wo33 (mg# = 52-44, n=7); ferro-augite Fs41Wo27 (mg# = 29-33, n=9; Fe/Mn = 55); An93Or1 (An63-97, n=63). Kamacite Ni 5-76, Co 12-5 (mg/g, n=3); taenite Ni 192, Co 15 (mg/g); awaruite Ni 636, Co 18 (mg/g); pyrrhotite; troilite; pentlandite Ni 331, Co 11 (mg/g). Bulk composition (R. Korotev, WUSL): FeO 4.9, K2O 0.3 wt%; Sc 8.99, Ni 229, Zr 138, La 9.8, Ce 24.5, Nd 14.9, Sm 4.43, Eu 0.986, Ta 0.447, Ir 0.0094, Au 0,0074, Th 2.3, U 0.64 (all in ppm).

Classification: Lunar (mingled regolith breccia). Classified as a mingled regolith breccia rather than a feldspathic fragmental breccia based as well on the presence of mare and KREEPy material as of HASP and chondritic metal.

Specimens: A total of 6.9 g is on deposit at Kiel. Thin section and 3.5 g at Bart. The main mass is held by the finder.

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Date:2003 Feb 28
Latitude:19°22.044'N
Longitude:55°28.855'E
Mass (g):34.36
Pieces:1
Class:Lunar
Fayalite (mol%):39.7 (26.0-47.1, n=3)
Ferrosilite (mol%):55.6 (46.1-66.0, n=2)
Wollastonite (mol%):3.1 (3.7-2.5, n=2)
Magnetic suscept.:3.17
Classifier:Bart
Type spec mass (g):6.9
Type spec location:Kiel
Main mass:anonymous
Finder:anonymous
Comments:Submitted by R. Bartoschewitz
Institutions
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography:

Oman
Coordinates:
     Recommended::   (19° 22' 3"N, 55° 28' 51"E)

Statistics:
     This is 1 of 1751 approved meteorites from Al Wusta, Oman (plus 72 unapproved names)
     This is 1 of 3960 approved meteorites from Oman (plus 371 unapproved names)
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