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Chwichiya 006
Basic information Name: Chwichiya 006
     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:help 244 g
Classification
  history:
Recommended:  ureilite    [explanation]

This is 1 of 573 approved meteorites classified as ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 2 Nov 2020
Writeuphelp
Writeup from MB 109:

Chwichiya 006        27° 7’40.65"N, 11°12’33.33"W

Saguia el Hamra, Western Sahara

Purchased: 2020 Mar

Classification: Ureilite

History: The meteorite was found by a Moroccan meteorite hunter on his way to hunt for Chwichiya specimens, acquired by a seller in Zagora and subsequently sold to Fabien Kuntz.

Physical characteristics: Dark brownish rock without fusion crust.

Petrography: The meteorite shows a cumulate texture composed of up to 2 mm sized olivine and pigeonite grains. Both, olivine and pyroxene display characteristic reduced rims and the meteorite contains rare flaky graphite. Some cracks are filled with secondary clacite.

Geochemistry: reduced rims in olivine: Fa3.6-13.0; olivine contains 0.90±0.06 wt% Cr2O3 and 0.43±0.02 wt% CaO; reduced rims in pyroxene: Fs7.0-10.5Wo6.6-11.4; pigeonite contains 1.34±0.05 wt% Cr2O3 and 0.60±0.03 wt% Al2O3

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Saguia el Hamra
Place of purchase:Zagora, Morocco
Date:P 2020 Mar
Latitude:27° 7'40.65"N
Longitude:11°12'33.33"W
Mass (g):244
Pieces:1
Class:ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):21.4±0.2, n=14
Ferrosilite (mol%):17.6±0.1, n=12
Wollastonite (mol%):9.7±0.1, n=12
Classifier:A. Greshake, MNB
Type spec mass (g):24.4
Type spec location:MNB
Main mass:Fabien Kuntz
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography:

Western Sahara
Coordinates:
     Recommended::   (27° 7' 41"N, 11° 12' 33"W)

Statistics:
     This is 1 of 97 approved meteorites from Saguia el Hamra, Western Sahara
     This is 1 of 234 approved meteorites from Western Sahara (plus 19 unapproved names)
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