Meteoritical Bulletin: Entry for Grosvenor Mountains 17188

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Grosvenor Mountains 17188

Basic information

Name: Grosvenor Mountains 17188
This is an OFFICIAL meteorite name.
Abbreviation: GRO 17188
Observed fall: No
Year found: 2017
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 45.9 g

Classification
history:

Recommended:

EH3 [explanation]

This is 1 of 141 approved meteorites classified as EH3. [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites

Comments:

Approved 22 Sep 2022

Writeup

help

Writeup from AMN 45(2):

Sample Number

GRO 17188

Newsletter

45,2

Location

Grosvenor Mountains

Field Number

25773

Dimensions (cm)

3.3 x 2.9 x 2.0

Weight (g)

45.87

Original Classification

EH3 Chondrite

Mineral Composition (%Fa & %Fs)

Ferrosilite (mol%): 0-2

Weathering

B/Ce

Fracturing

A

Macroscopic Description - Cecilia Satterwhite

Black/brown fusion crust with oxidation covers 90% of the exterior surface. The interior has a dark grey matrix with metal and oxidation scattered, with some rusty areas.

Thin Section Description -

The section shows an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of ~30% metal and sulfide. Weathering is minor, with staining of enstatite grains and minor alteration of metal and sulfides. Microprobe analyses show the pyroxene is Fs_0-2. FeNi metal contains 2.7 wt.% Si. The meteorite is an EH3 enstatite chondrite.

Antarctic Meteorite Images for Sample GRO 17188

Field Photo(s) :

ANSMET GRO 17188 - Field Number: 25773, NASA Photo Number: jsc2021e009138

Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah

Antarctic Meteorite Images for Sample GRO 17188

Lab Photo(s) :

Antarctic Meteorite Images for Sample GRO 17188

Thin Section Photo(s) :

Thin Section Photo of Sample GRO 17188,2 at 5x magnification in Cross Polarized Light

Thin Section Photo of Sample GRO 17188,2 at 5x magnification in Plane Polarized Light

Thin Section Photo of Sample GRO 17188,2 at 5x magnification in Reflected Light

Data from:
  MB111
  Table 0
  Line 0:

Date:	2017
Latitude:	-85.8536
Longitude:	174.197
Mass (g):	45.865
Pieces:	1
Class:	EH3
Weathering grade:	B/Ce
Ferrosilite (mol%):	0-2
Magnetic suscept.:	5.27
Classifier:	SI
Type spec mass (g):	45.865
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET
Comments:	EMPA; 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 45(2) (2022), JSC, Houston
Published in Meteoritical Bulletin, no. 111, in preparation (2022)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(85° 51' 13"S, 174° 11' 49"E)

Statistics:
This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names)

Proximity search:

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