Meteoritical Bulletin: Entry for Chwichiya 008

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Chwichiya 008

Basic information

Name: Chwichiya 008
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Western Sahara
Mass: 97.5 g

Classification
history:

Recommended:

Eucrite [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 22 Dec 2021

Writeup

Writeup from MB 110:

Chwichiya 008 27°23’12"N, 11°45’29"W

Saguia el Hamra, Western Sahara

Purchased: 2020 Jan

Classification: HED achondrite (Eucrite)

Petrography: (J. Gattacceca, CEREGE) Igneous rock with intersertal texture. Main minerals are pyroxene and plagioclase with typical grain size 400 µm. Other minerals include chromite, ilmenite, metal, troilite.

Geochemistry: Low-Ca pyroxene Fs_59.3±0.6Wo_2.7±0.4, FeO/MnO 30.2±2.0 (n=4). Augite exsolutions Fs_26.6Wo_43.3, FeO/MnO 30.3 (n=2). Plagioclase An_89.2±0.3Ab_10.5±0.4Or_0.3±0.1(n=4). Chromite Cr# 0.82.

Classification: Achondrite (eucrite)

Specimens: Type specimen at CEREGE, main mass with José Garcia

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Saguia el Hamra
Date:	P 2020 Jan
Latitude:	27°23'12"N
Longitude:	11°45'29"W
Mass (g):	97.5
Pieces:	68
Class:	Eucrite
Weathering grade:	moderate
Ferrosilite (mol%):	59.3±0.6 (n=4)
Wollastonite (mol%):	2.7±0.4
Magnetic suscept.:	3.46
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	20
Type spec location:	CEREGE
Main mass:	José Garcia
Finder:	anonymous
Comments:	work name CM88; submitted by Jérôme Gattacceca

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 110, in preparation (2021)

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Geography:

Western Sahara

Coordinates:
Recommended::	(27° 23' 12"N, 11° 45' 29"W)

Statistics:
This is 1 of 101 approved meteorites from Saguia el Hamra, Western Sahara
This is 1 of 250 approved meteorites from Western Sahara (plus 20 unapproved names)

Proximity search:

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