Meteoritical Bulletin: Entry for Grosvenor Mountains 95596

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Grosvenor Mountains 95596

Basic information

Name: Grosvenor Mountains 95596
This is an OFFICIAL meteorite name.
Abbreviation: GRO 95596
Observed fall: No
Year found: 1995
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 12.7 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 21(1)	(1998)	LL3.8
Meteoritical Bulletin:	MB 82	(1998)	LL3.8
NHM Catalogue:	5th Edition	(2000)	LL3.8
MetBase:	v. 7.1	(2006)	LL3.8
Recommended:			LL3.8 [explanation]

This is 1 of 33 approved meteorites classified as LL3.8. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Writeup

Writeup from AMN 21(1):

Sample No.:	GRO95596
Location:	Grosvenor Mountains
Dimensions (cm):	2.5x2.0x1.5
Weight (g):	12.69
Meteorite Type:	LL3 Chondrite (estimated LL3.8)

Macroscopic Description: Kathleen McBride
This ordinary chondrite has shiny brown/black fusion crust, with a rough texture. The interior has a white matrix with an oxidation rind. Metal grains and dark gray crystalline clasts are visible. Chondrules are dark gray in color.

Thin Section (,2) Description: Brian Mason
The section shows a closed-packed aggregate of chondrules and chondrule fragments (up to 2.4 mm across) in a dark matrix containing a small amount of nickel-iron and troilite. Weathering is minor, with some brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition; olivine, Fa9-29, mean Fa24; pyroxene, Fs3-20. The meteorite is classified as an LL3 chondrite (estimated LL3.8).

Data from:
  MB82
  Table A1
  Line 230:

Origin or pseudonym:	Inner Cecily
Mass (g):	12.7
Class:	LL3.8
Weathering grade:	A/B
Fayalite (mol%):	9-29
Ferrosilite (mol%):	3-20

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
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:

Credit	Photos
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 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

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