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Dar al Gani 896
Basic information Name: Dar al Gani 896
     This is an OFFICIAL meteorite name.
Abbreviation: DaG 896
Observed fall: No
Year found: 2000
Country: Libya
Mass:help 22.6 g
Classification
  history:
Meteoritical Bulletin:  MB 87  (2003)  Achondrite-prim-ung
MetBase:  v. 7.1  (2006)  H-imp melt
Recommended:  H-imp melt    [explanation]

This is 1 of 13 approved meteorites classified as H-imp melt.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from MB 87:

Dar al Gani 896

Libya

Found 2000 November

Achondrite (primitive, ungrouped)

A 22.6 g, dark, ~50% fusion crusted, stony fragment was found in Dar al Gani by a private collector. The specimen is moderately oxidized and irregularly fractured. On slicing, it shows an homogeneous lithology. Shock veins of dark glass cross-cut the entire specimen. Classification and mineralogy  (L. Folco, MNA-SI): abundant fine-grained, skeletal olivine crystals (Fo82) are set in a mesostasis mainly consisting of rhyolitic glass plus quench crystallites of pigeonite (En54Wo9). Minor mineral constituents include enstatite (En83Wo2), augite (En37Wo30), and traces of chromite, sulfides, Fe-Ni metal and phospates. Undulose extinction and planar fracturing in olivine indicate moderate shock. Thin veins of secondary carbonates are present, most likely due to terrestrial weathering. Major element composition (P. Bland, OU) estimated from the mean of 256 broadbeam microprobe analyses (spot size 20 µm,) indicates a komatiitic IUGS composition (SiO2 = 47.22 wt%, Na2O + K2O = 1.53 wt%, MgO = 29.87 wt%) with chondritic Mn/Mg 7.5 × 10−3. Oxygen isotopes (I. A. Franchi, OU): δ17O = +2.547‰, δ18O = +3.501‰, ∆17O = +0.726‰, similar to mean H chondrite. Data suggest an affinity with igneous inclusions in ordinary chondrites and impact melt origin. Specimens: main mass with anonymous finder; 5.442 g and four thin sections, MNA­SI.

Data from:
  MB87
  Table 7
  Line 14:
Date:Nov 2000
Latitude:-27°45'N
Longitude:-l6°53'E
Mass (g):22.6
Pieces:1
Class:Achond ung
Classifier:A. Burroni and L. Folco, MNA-SI
Type spec mass (g):5.442
Plots: O isotopes:  
Institutions
   and collections
MNA-SI: Museo Nazionale dell'Antartide, Università di Siena, Via Laterina 8, I-53100 Siena, Italy; Website (institutional address; updated 13 Dec 2011)
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)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
Catalogs:
Search for this meteorite in the Museo Nazionale dell'Antartide database (Siena, Italy):   
References: Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
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Geography:

Libya
Coordinates:
     Recommended::   (27° 45'N, 16° 53'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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