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Dar al Gani 1068
Basic information Name: Dar al Gani 1068
     This is an OFFICIAL meteorite name.
Abbreviation: DaG 1068
Observed fall: No
Year found: 1999
Country: Libya
Mass:help 31 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  CR
Recommended:  CR    [explanation]

This is 1 of 14 approved meteorites classified as CR.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites
Comments: Approved 31 Jul 2017
Writeuphelp
Writeup from MB 106:

Dar al Gani 1068 (DaG 1068)        27°40.634’N, 16°14.269’E

Al Jufrah, Libya

Find: Nov 1999

Classification: Carbonaceous chondrite (CR)

History: A single stone weighing 31 g was found by Romano Serra, OAM, during an expedition to search for meteorites.

Physical characteristics: A small single stone, partly covered by fusion crust.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi): The thin section displays a texture composed of separated, well-formed chondrules (ranging in diameter from 500 to 2000 μm) of different kinds, many surrounded by metal, in a fine-grained matrix. The most abundant types are PO, with minor POP, BO and RP types. Main minerals are olivine, orthopyroxene, Ca-rich plagioclase and a fassaitic clinopyroxene. CAIs are visible on the cut surface of the type specimen. Opaques are mainly consisting of troilite and altered kamacite.

Geochemistry: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi): Olivine in PO and POP chondrules (Fa2.5±0.2, Fe/Mn = 8.6±1.1, N = 15); Olivine in BO chondrules (Fa33.9±0.6, Fe/Mn = 46.5±1.1, N = 7), orthopyroxene (Fs2.1±0.3Wo0.9±0.2, Fe/Mn = 10.8±1.1, N = 7); fassaite (Fs9.5±0.4En62.6±0.3Wo27.9±0.9, Al2O3 = 15.4 Wt.%, N = 5). Feldspar An95.5Or4.4. Oxygen isotopes: (I.Franchi, R.Greenwood, OU) δ17O = -0.84 ‰, δ18O = 2.28 ‰, Δ17O = -2.03 ‰;.

Classification: Carbonaceous chondrite (CR). Moderate weathering.

Specimens: A total of 6.3 g specimen is on deposit at MSN-Fi. The main mass is on deposit at OAM.

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Al Jufrah
Date:Nov 1999
Latitude:27°40.634'N
Longitude:16°14.269'E
Mass (g):31
Pieces:1
Class:CR
Shock stage:S2
Weathering grade:medium
Fayalite (mol%):2.5±0.2 (n=15); 33.9±0.6 (n=6)
Ferrosilite (mol%):2.1±0.3 (n=7)
Wollastonite (mol%):0.9±0.2
Classifier:V. Moggi Cecchi, S. Caporali, G. Pratesi, MSN-FI
Type spec mass (g):6.3
Type spec location:MSN-FI
Main mass:OAM
Comments:Submitted by Vanni Moggi Cecchi
Plots: O isotopes:  
Institutions
   and collections
OAM: Museo del Cielo e della Terra Vicolo Baciadonne 1 40017 San Giovanni in Persiceto ( BO) Italy Osservatorio Astronomico e Museo "Giorgio Abetti", San Giovanni Persiceto, Bologna, Italy; Website (institutional address; updated 31 Oct 2012)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
MSN-FI: MUSEO DI STORIA NATURALE DELL'UNIVERSITA' DEGLI STUDI DI FIRENZE Via Giorgio La Pira, 4 – 50121 FIRENZE, Italy; Website (institutional address; updated 14 Jan 2015)
UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Photos:
CreditPhotos
Public domain photographs:
Vanni Moggi Cecchi   
Geography:

Libya
Coordinates:
     Recommended::   (27° 40' 38"N, 16° 14' 16"E)

Statistics:
     This is 1 of 1046 approved meteorites from Al Jufrah, Libya
     This is 1 of 1496 approved meteorites from Libya (plus 22 unapproved names) (plus 2 impact craters)
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