Meteoritical Bulletin: Entry for Grosvenor Mountains 17139

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Grosvenor Mountains 17139

Basic information

Name: Grosvenor Mountains 17139
This is an OFFICIAL meteorite name.
Abbreviation: GRO 17139
Observed fall: No
Year found: 2017
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 8.4 g

Classification
history:

Recommended:

CK6 [explanation]

This is 1 of 82 approved meteorites classified as CK6. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Comments:

Approved 13 Mar 2021

Writeup

help

Writeup from AMN 44(1):

Sample Number

GRO 17139

Newsletter

44,1

Location

Grosvenor Mountains

Field Number

25573

Dimensions

2.5 x 1.8 x 1.7

Weight

8.43

Original Classification

CK6 CHONDRITE

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 26

A/B

A/B

Macroscopic Description - Kellye Pando

85% of exterior is covered with rough, fractured, black frothy fusion crust. Exposed area is very dark grey-black. Fresh interior is dark grey-black matrix with some like orange-yellow weathering concentrated near exterior edges.

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

The section consists of a few (up to 1 mm), poorly-defined chondrules in a matrix of finer-grained silicates, sulfides and magnetite. The meteorite displays moderate weathering and is very extensively shock blackened. Silicates are homogeneous. Olivine is Fa₂₆. No pyroxene analyses were obtained. The meteorite appears to be a CK6 chondrite.

Antarctic Meteorite Images for Sample GRO 17139

Lab Photo(s) :

Lab Photo of Sample GRO 17139

Lab Photo of Sample GRO 17139

Antarctic Meteorite Images for Sample GRO 17139

Thin Section Photo(s) :

Thin Section Photo of Sample GRO 17139 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample GRO 17139 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample GRO 17139 in Reflected Light with 2.5X Magnification

Data from:
  MB110
  Table 0
  Line 0:

Date:	2017
Latitude:	-85.9206
Longitude:	174.377
Mass (g):	8.43
Pieces:	1
Class:	CK6
Weathering grade:	A/B
Fayalite (mol%):	26
Classifier:	SI
Type spec mass (g):	8.43
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 44(1) (2021), JSC, Houston
Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(85° 55' 14"S, 174° 22' 37"E)

Statistics:
This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names)

Proximity search:

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