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Jikharra 001
Basic information Name: Jikharra 001
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: Libya
Mass:help 2.5 t
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Eucrite-melt breccia
Recommended:  Eucrite-melt breccia    [explanation]

This is 1 of 106 approved meteorites classified as Eucrite-melt breccia.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Aug 2022
Revised 24 Sep 2022: Updated mass
Writeuphelp
Writeup from MB 111:

Jikharra 001        29°58’08.2’’ N, 21°52’05.0’’ E

Ajdabiya, Libya

Purchased: 2022

Classification: HED achondrite (Eucrite, melt breccia)

History: Numerous fragments reportedly totalling at least 2.5 metric tons, and possibly more that 3 T, were recovered in Northeastern Libya. Fifty kg of it were subsequently purchased by the main mass holder from a meteorite dealer in Libya.

Physical characteristics: Many brownish fragments some of which with small patches of fusion crust.

Petrography: Achondritic melt breccia composed of several cm-sized lithic clasts set in abundant recrystallized shock melt. Lithic clasts consist of calcic plagioclase and aggregates of fine-grained, 30-70 µm sized pigeonite crystals displaying patchy compositional zoning. The melt matrix is composed of recrystallized pigeonite displaying mottled compositional zoning and fine-grained, mostly fibrous feldspar. Minor phases include silica, Ti-chromite, ilmenite, and FeS. No metallic iron has been detected.

Geochemistry: patchily zoned pigeonite: Fs50.1±1.5Wo11.6±1.7 (Fs48.1-53.4Wo6.9-13.3, FeO/MnO=27-31, n=12); calcic plagioclase: An90.2±0.7 (An88.9-91.3, n=10)

Specimens:: 83.5 g at MNB; 205 g including two polished thin sections at UWB; 50 kg with M. Cimala; 63.36 kg with WangZ, 350 kg with M. Lyon, 845.8 kg with DPitt; (including a single 215 kg specimen), ~150 kg with Ali Benamar; 1000 kg with an anonymous Chinese collector.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Ajdabiya
Place of purchase:Libya
Date:P 2022
Latitude:29°58'08.2'' N
Longitude:21°52'05.0'' E
Mass (g):2500000
Pieces:many
Class:Eucrite-melt breccia
Shock stage:high
Weathering grade:moderate
Ferrosilite (mol%):50.1
Wollastonite (mol%):11.6
Classifier:A. Greshake, MNB
Type spec mass (g):289
Type spec location:83.5 g MNB, 205 g UWB
Main mass:M. Cimala, WangZ, M. Lyon, DPitt, A. Benamar
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography:

Libya
Coordinates:
     Recommended::   (29° 58' 8"N, 21° 52' 5"E)

Statistics:
     This is 1 of 20 approved meteorites from Ajdabiya, Libya (plus 1 unapproved name)
     This is 1 of 1559 approved meteorites from Libya (plus 25 unapproved names) (plus 2 impact craters)
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