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| Dar al Gani 1068 | |||||||||||||||||||||||||||||||||||
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| 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:  31 g | ||||||||||||||||||||||||||||||||||
| Classification history: |
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 | ||||||||||||||||||||||||||||||||||
| Writeup |
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: |
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| 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 “La Specola”, Sez. Mineralogia – Sistema Museale dell'Università degli Studi di Firenze Via Giorgio La Pira, 4 – 50121 Firenze, Italy; Website (institutional address; updated 24 Oct 2022) UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013) |
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| 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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Geography:
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Statistics: This is 1 of 1046 approved meteorites from Al Jufrah, Libya This is 1 of 1539 approved meteorites from Libya (plus 23 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||||||||
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