Meteoritical Bulletin: Entry for Grosvenor Mountains 17039

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Grosvenor Mountains 17039

Basic information

Name: Grosvenor Mountains 17039
This is an OFFICIAL meteorite name.
Abbreviation: GRO 17039
Observed fall: No
Year found: 2017
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 8.3 g

Classification
history:

Meteoritical Bulletin:	MB 107	(2018)	Eucrite-pmict
Antarctic Meteorite Newsletter:	AMN 41(2)	(2018)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 425 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 28 Sep 2018

Writeup

help

Writeup from AMN 41(2):

Sample Number

GRO 17039

Newsletter

41,2

Location

Grosvenor Mountains

Field Number

25544

Dimensions

2.5 x 1.7 x 1.3

Weight

8.269

Original Classification

Eucrite (Polymict)

Pairing

GRO 17211

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 0; Ferrosilite (mol%): 27-62

A/B

A

Macroscopic Description - Rachel Funk, Kellye Pando, Cecilia Satterwhite

The exteriors of these meteorites have black glassy fusion crust. The exposed interiors have a gray matrix with white clasts throughout. The clasts are 2-4 mm in size and some are weathered to a beige color. There are some fractures cutting through the interiors of the meteorites. The fresh interiors have a light gray to white matrix with white clasts 2-4 mm in size. Minor amounts of orange rust are present.

Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Nicole Lunning

The sections consist of a fine-grained brecciated matrix with up to 2.5 mm clasts of coarse-grained eucritic material. Mineral compositions are homogeneous with orthopyroxene (Fs₆₅Wo₂), lamellae of augite (Fs₂₇Wo_52-65), and plagioclase (An₈₈Or_0.5). The Fe/Mn ratio of the pyroxene is ~31. The meteorites are polymict eucrites.

Antarctic Meteorite Images for Sample GRO 17039

Thin Section Photo of Sample GRO 17039 in Plane-Polarized Light with 2.5X Magnification

Lab Photo of Sample GRO 17039 Displaying North Orientation

Lab Photo of Sample GRO 17039 Displaying Splits View

Lab Photo of Sample GRO 17039 Displaying West Orientation

Lab Photo of Sample GRO 17039 Displaying South Orientation

Lab Photo of Sample GRO 17039 Displaying East Orientation

Lab Photo of Sample GRO 17039 Displaying Bottom Orientation

Thin Section Photo of Sample GRO 17039 in Cross-Polarized Light with 2.5X Magnification

Data from:
  MB107
  Table 0
  Line 0:

Date:	2017
Mass (g):	8.269
Pieces:	1
Class:	Eucrite-pmict
Weathering grade:	A/B
Ferrosilite (mol%):	27-62
Magnetic suscept.:	2.89
Classifier:	SI
Type spec mass (g):	8.269
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET
Comments:	Submitted by AMN

Institutions
and collections

JSC: Mailcode XI, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 28 Jul 2022)
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 NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 41(2) (2018), JSC, Houston
Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462

Find references in NASA ADS:
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Geography:

Antarctica

Antarctica

Coordinates:

Unknown.

Statistics:
This is 1 of 45041 approved meteorites from Antarctica (plus 3472 unapproved names)

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