Jikharra 001 Eucrite fusion breccia - 34 g - (1)

Name: Jikharra 001 This is an OFFICIAL name for a meteorite.
Abbreviation: There is no official abbreviation for this meteorite.
Fall observed: No
Year of discovery: 2022
Country: Libya
Mass: 2.5 t
Classification history:
Meteoritical Bulletin, MB 111 (2023): Eucrite impact melt breccia
Recommended: Eucrite impact melt breccia [explanation]

This is 1 of 166 meteorites approved/classified as eucrite impact melt breccia. [show all]
Search others: Chondrites , Eucrites and Chondrites HED
Comments:
Approved on August 6, 2022.
Reviewed on September 24, 2022: mass updated.
Drafting
MB 111 Report:
Jikharra 001 29°58'08.2'' N, 21°52'05.0'' E
Ajdabiya, Libya
Acquired: 2022
Classification: HED chondrite (Eucrite, melted breccia)
History: Numerous fragments were recovered, with a total weight estimated at at least 2.5 metric tons, and possibly more than 3 tons, in northeastern Libya. Subsequently, the primary mass holder acquired fifty kilograms of these fragments from a meteorite dealer in Libya.

Physical characteristics: Many fragments brown in color, some with small fusion crust areas.

Petrography: A chondritic breccia composed of lithic clasts several centimeters in size, embedded in abundant shock-recrystallized fusion. The lithic clasts consist of calcic plagioclase and fine-grained pigeonite crystal aggregates, 30–70 μm, with irregular compositional zoning. The fusion matrix is composed of recrystallized pigeonite with mottled compositional zoning and fine-grained feldspar, mostly fibrous. Minor phases include silica, titanium chromite, ilmenite, and FeS. No metallic iron detected.

Geochemistry: pigeonite divided into zones: Fs 50.1±1.5 Wo 11.6±1.7 (Fs 48.1-53.4 Wo 6.9-13.3, n=12); calcic plagioclase: An 90.2±0.7 (An 88.9-91.3, 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
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 2023-10-09)
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 2011-12-24)
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 2021-06-25)
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. ?
Find references in NASA ADS.Logotipo del sistema ADS de la NASA
Find references in Google ScholarLogotipo de Google Scholar
Photos:
Credit Photos
Photos uploaded by members of the Encyclopedia of Meteorites.
(Caution, these are of unknown reliability)
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Geography:
Country: Libya
Coordinates:
Recommended: (29° 58' 8"N, 21° 52' 5"E)
Statistics:
This is 1 of 30 approved meteorites from Ajdabiya, Libya (plus 2 unapproved names)
This is 1 of 1658 approved meteorites from Libya (plus 30 unapproved names) (plus 2 impact craters)
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