Meteoritical Bulletin: Entry for Erg Chech 010

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Erg Chech 010

Basic information

Name: Erg Chech 010
This is an OFFICIAL meteorite name.
Abbreviation: EC 010
Observed fall: No
Year found: 2021
Country: Algeria
Mass: 6.7 kg

Classification
history:

Recommended:

Diogenite [explanation]

This is 1 of 511 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 1 Oct 2022

Writeup

Writeup from MB 111:

Erg Chech 010 (EC 010) 26.0575°N, 2.0788°W

Adrar, Algeria

Purchased: 2021

Classification: HED achondrite (Diogenite)

History: The meteorite was found in April, 2021, in the Erg Chech desert, Algeria and subsequently purchased by the main mass holder.

Physical characteristics: Many light brownish fragments without fusion crust.

Petrography: The meteorite displays a coarse-grained protogranular texture predominantly composed of up to 7 mm sized orthopyroxene grains. Minor phases are silica, troilite, chromite and FeNi metal. Myrmekitic intergrowths of silica and chromite are present.

Geochemistry: low-Ca pyroxene: Fs_24.5±0.2Wo_3.4±0.1(Fs_24.3-24.8Wo_3.3-3.6, n=7, FeO/MnO=26-30)

Classification: Diogenite; likely paired with Erg Chech 001 which was found 0.2 km away.

Data from:
  MB111
  Table 0
  Line 0:

State/Prov/County:	Adrar
Place of purchase:	Morocco
Date:	P 2021
Latitude:	26.0575°N
Longitude:	2.0788°W
Mass (g):	6700
Pieces:	many
Class:	Diogenite
Shock stage:	low
Weathering grade:	moderate
Ferrosilite (mol%):	24.5
Wollastonite (mol%):	3.4
Classifier:	A. Greshake, MNB
Type spec mass (g):	20
Type spec location:	MNB
Main mass:	Said Yousfi
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 111, in preparation (2022)

Find references in NASA ADS:
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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Said Yousfi

Geography:

Algeria

Coordinates:
Recommended::	(26° 3' 27"N, 2° 4' 44"W)

Statistics:
This is 1 of 190 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
This is 1 of 1277 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

Proximity search:

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