Meteoritical Bulletin: Entry for Chwichiya

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 18 Nov 2023
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Chwichiya

Basic information

Name: Chwichiya
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2014
Country: Western Sahara
Mass: 534 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	LL3
Recommended:			LL3 [explanation]

This is 1 of 469 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 17 Apr 2017

Writeup

Writeup from MB 106:

Chwichiya 27°16’46.56"N, 11°50’19.02"W

Laayoune/Assaquia Al Hamra, Morocco-Western Sahara

Find: 2014 Feb 26

Classification: Ordinary chondrite (LL3)

History: Found during a meteorite search in the Chwichiya area around 120 NE of Laayoune by a group of four Moroccan hunters on February 24, 2014.

Physical characteristics: Weathered piece, without fusion crust

Petrography: Well formed chondrules up to 2 mm diameter; sparse matrix with altered metal.

Geochemistry: Fa_27.92±13.2(Fa_13.41-60.83) N=10 Fe/Mn=49.94±28.69; Fs_20.33±9.3(Fs_3.3-33) and Wo_1.8±1.1(Wo_0.2-3.4) N=8 Fe/Mn=28±11

Classification: LL3, possible sub-type 3.4.

Specimens: one piece and one thick section in FSAC

Synonym: Chwichiya 001

Data from:
  MB106
  Table 0
  Line 0:

State/Prov/County:	Laayoune/Assaquia Al Hamra
Origin or pseudonym:	Chwichiya
Place of purchase:	Tan Tan
Date:	2014 Feb 26
Latitude:	27°16'46.56"N
Longitude:	11°50'19.02"W
Mass (g):	533.7
Pieces:	1
Class:	LL3
Shock stage:	S2
Weathering grade:	W3
Fayalite (mol%):	27.9±13.2 (13.4-60.8, n=10)
Ferrosilite (mol%):	20.3±9.3 (3.3-33.0, n=8)
Wollastonite (mol%):	1.8±1.1 (0.2-3.4, n=8)
Magnetic suscept.:	4.25
Classifier:	H. Chennaoui Aoudjehane, FSAC
Type spec mass (g):	22.90
Type spec location:	FSAC
Main mass:	Jean Redelsperger
Finder:	Mohamed Ben Omar, Hamo Azeroual (Guelmim Morocco), Ibrahim Lebbihi (Foum Zguid Morocco) and Mohamed Elguirah (Tan Tan Morocco)
Comments:	Submitted by H. Chennaoui Aoudjehane (FSAC)

Institutions
and collections

FSAC: Universite Hassan II Casablanca, Faculte des Sciences Ain Chock, Departement de Géologie, BP 5366 Maârif, Casablanca, Morocco (institutional address; updated 9 Jan 2013)

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Western Sahara

Coordinates:
Recommended::	(27° 16' 47"N, 11° 50' 19"W)

Statistics:
This is 1 of 109 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
This is 1 of 272 approved meteorites from Western Sahara (plus 20 unapproved names)

Proximity search:

Synonyms

Chwichiya 001 (First meteorite in DCA)

Direct link to this page