Meteoritical Bulletin: Entry for Dar al Gani 083

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Dar al Gani 083

Basic information

Name: Dar al Gani 083
This is an OFFICIAL meteorite name.
Abbreviation: DaG 083
Observed fall: No
Year found: 1995
Country: Libya
Mass: 622 g

Classification
history:

Meteoritical Bulletin:	MB 81	(1997)	CO3
NHM Catalogue:	5th Edition	(2000)	CO3
MetBase:	v. 7.1	(2006)	CO3
Recommended:			CO3.1 [explanation]

This is 1 of 16 approved meteorites classified as CO3.1. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Revised 22 Jul 2020: added subtype

Writeup

Writeup from MB 109:

Dar al Gani 083 (DaG 083), subclassification

Geochemistry: Mineral composition and geochemistry: (S. Ebert, IfP) Olivine in the range Fa_0.2-61.1(mean Fa_12.4±15.1, PMD=122%, N=113). Cr₂O₃ in ferroan olivine 0.19±0.10 wt.% (N=68). Low-Ca pyroxene Fs_1.9±1.8Wo_1.3±1.0(N=51).

Classification: (S. Ebert, IfP) Carbonacous chondrite - CO3.1; Subtype from Cr₂O₃ content of ferroan olivine (Grossman and Brearley, 2005) and the very high olivine PMD.

Bibliography:

Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)

Data from:
  MB81
  Table 3
  Line 110:

Latitude:	27°09.58'N
Longitude:	15°57.77'E
Mass (g):	622
Pieces:	2
Class:	CO3
Shock stage:	S2
Weathering grade:	W3
Fayalite (mol%):	17.3 (0.1-65)
Ferrosilite (mol%):	2.5 (0.6-14)
Classifier:	D. Weber and A. Bischoff, Mün
Type spec location:	Mün
Main mass:	anonymous finder or at MNB

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Mün: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):

References:

Published in Meteoritical Bulletin, no. 81, MAPS 32, A159-A166 (1997)
Published in Meteoritical Bulletin, no. 109, in preparation (2020)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
David Hardy

Geography:

Libya

Coordinates:
Catalogue of Meteorites:	(27° 9' 35"N, 15° 57' 46"E)
Recommended::	(27° 9' 35"N, 15° 57' 46"E)

Note: the NHM and MetBase coordinates are 7.4 m apart

Statistics:
This is 1 of 1046 approved meteorites from Al Jufrah, Libya
This is 1 of 1553 approved meteorites from Libya (plus 24 unapproved names) (plus 2 impact craters)

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Revision
history:

This lists important revisions made to data for this record.

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