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Northwest Africa 4519
Basic information Name: Northwest Africa 4519
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4519
Observed fall: No
Year found: 2001
Country: Morocco
Mass:help 114 g
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 623 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 24 Jul 2007
Writeuphelp
Writeup from MB 92:

Northwest Africa 4519

Morocco

Find:2001

Achondrite (ureilite)

History: Purchased in Zagora, Morocco in 2001.

Physical characteristics: The deformed conical shaped mass (114 g; 6.5x3.5 cm) is partially fusion crusted.

Petrography: (H. Takeda, Chiba and A. Yamaguchi, NIPR).It contains olivine and pyroxene with carbonaceous veins at grain boundaries. Mafic silicate crystals seem to show a preferred orientation, two to three crystals up to 4.2x1.4 mm in size are joined with common elongation direction without carbonaceous veins to form a large aggregate (ca. 4.2x3.8 mm) with carbonaceous materials around it.

Mineral compositions and geochemistry: Olivine (Fo83-80 [cores]; Fo89 [rims]), pyroxene (Fs16.7Wo8.6). Oxygen Isotopes: (M. Kusakabe, OkaU), δ17O = 3.29, δ18O = 8.20 (both ‰).

Classification: Achondrite (ureilite); minimal weathering.

Type specimen: A total of 20 g of sample and two thin sections are on deposit at NIPR. Fectay holds the main mass.

Data from:
  MB92
  Table 2
  Line 85:
Place of purchase:Zagora, Morocco
Date:2001
Mass (g):114
Pieces:1
Class:Ure
Type spec mass (g):20
Plots: O isotopes:  
Institutions
   and collections		 NIPR: Antarctic Meteorite Research Center, National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Website (institutional address; updated 9 Dec 2013)
Chiba: Chiba Institute of Technology, Tsudanuma, Narashino, Chiba 275-0016, Japan (institutional address)
Fectay: Bruno Fectay and Carine Bidaut, La Memoire de la Terre SARL, 39800 Aumont, France; Website (private address)
OkaU: Institute for Study of the Earth's Interior, Okayama University, Misasa Tottori 682-0193, Japan (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1967 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater)

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