Meteoritical Bulletin: Entry for Dar al Gani 975

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Dar al Gani 975

Basic information

Name: Dar al Gani 975
This is an OFFICIAL meteorite name.
Abbreviation: DaG 975
Observed fall: No
Year found: 1999
Country: Libya
Mass: 27.6 g

Classification
history:

Meteoritical Bulletin:	MB 87	(2003)	Martian (basaltic shergottite)
MetBase:	v. 7.1	(2006)	Shergottite-basaltic (ol phyric)
Recommended:			Martian (shergottite) [explanation]

This is 1 of 322 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all]
Search for other: Martian meteorites

Writeup

help

Writeup from MB 87:

Dar al Gani 975

Libya

Found 1999 August 21

Martian meteorite (basaltic shergottite)

A 27.55 g stone was found on 1999 August 21 in the sand desert of Dar al Gani. Classification and mineralogy (A. Greshake, MNB; M. Kurz, Kurz): a basaltic shergottite with porphyritic texture; large chemically zoned olivine phenocrysts are set into a fine-grained groundmass consisting mostly of pyroxene and maskelynite; minor phases include chromite, Ti-rich chromite, sulfides, phosphates, and small Fe-rich olivines; olivine phenocrysts contain melt inclusions, small chromites and exsolution lamellae; pyroxenes are mostly chemically zoned pigeonites, some contain orthopyroxene cores; olivine phenocrysts, Fa_24.3–38.3; pigeonite, Fs_21.1–29Wo_5.9–13.8; orthopyroxene, Fs_17.4–21.8Wo_{1.8– 3.4}; augite, Fs_18.5Wo₃₄; matrix olivine, Fa_35.9–39.8; maskelynite, An_66.5–71.4; shock stage, S4; contains melt veins and melt pockets; low degree of weathering. Possibly paired with DaG 476, 489, 670, 735 and 876. Specimens: main mass with anonymous finder; type specimen, 8.5 g, plus one polished thin section MNB.

Data from:
  MB87
  Table 7
  Line 49:

Date:	1999
Latitude:	27°19.63'N
Longitude:	16°13.00'E
Mass (g):	27.55
Pieces:	1
Class:	Martian
Classifier:	A. Greshake, MNB and M. Kurz, Kurz
Type spec mass (g):	8.5

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Kurz: M. Kurz, Schillerstrasse 7, D-34626 Neukirchen, Germany (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards

Geography:

Libya

Libya

Coordinates:
Recommended::	(27° 19' 38"N, 16° 13' 0"E)

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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