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Grosvenor Mountains 95608
Basic information Name: Grosvenor Mountains 95608
     This is an OFFICIAL meteorite name.
Abbreviation: GRO 95608
Observed fall: No
Year found: 1995
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 21(1)  (1998)  Ureilite
Meteoritical Bulletin:  MB 82  (1998)  Ureilite
NHM Catalogue:  5th Edition  (2000)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 514 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from AMN 21(1):

Sample No.:

GRO95608

Location:

Grosvenor Mountains

Dimensions (cm):

2.5x1.5x0.5

Weight (g):

6.08

Meteorite Type:

Ureilite


Macroscopic Description: Carol Schwarz
Eighty percent of this ureilite is covered with fusion crust which is smooth and black on the top and frothy on the bottom. The interior is black with areas of oxidation. Metal and white to yellowish colored mineral grains are visible on the interior and many larger interior grains have obvious cleavage planes. The specimen was very coherent.

Thin Section (,2) Description: Brian Mason
GRO95608 - Cross-Polarized LightThe section shows an aggregate of anhedral grains of olivine and pyroxene, up to 3 mm across. Individual grains are rimmed with carbonaceous material which contains trace amounts of nickel-iron and troilite. The meteorite appears to be relatively unshocked. Microprobe analyses show the following compositions: olivine, Fa22; pyroxene, Wo11Fs18. The meteorite is a ureilite.

Data from:
  MB82
  Table A1
  Line 242:
Origin or pseudonym:Outer Cecily
Mass (g):6.1
Class:Ur
Weathering grade:B
Fayalite (mol%):22
Ferrosilite (mol%):18
Catalogs:
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Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 21(1) (1998), JSC, Houston
Published in Meteoritical Bulletin, no. 82, MAPS 33, A221-A240 (1998)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
courtesy Dr Carlton Allen, JSC-KT, NASA   
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (85° 40'S, 175° 0'E)
     Recommended::   (85° 40'S, 175° 0'E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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