Meteoritical Bulletin: Entry for Grosvenor Mountains 17064

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Grosvenor Mountains 17064

Basic information

Name: Grosvenor Mountains 17064
This is an OFFICIAL meteorite name.
Abbreviation: GRO 17064
Observed fall: No
Year found: 2017
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 226 g

Classification
history:

Meteoritical Bulletin:	MB 107	(2018)	CR2
Antarctic Meteorite Newsletter:	AMN 41(2)	(2018)	CR2
Recommended:			CR2 [explanation]

This is 1 of 188 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Comments:

Approved 28 Sep 2018

Writeup

help

Writeup from AMN 41(2):

Sample Number

GRO 17064

Newsletter

41,2

Location

Grosvenor Mountains

Field Number

25714

Dimensions

6.0 x 6.0 x 5.5

Weight

226.400

Original Classification

CR2 Chondrite

Pairing

GRO 17063

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 1-36; Ferrosilite (mol%): 9-19

B

A

Macroscopic Description - Cecilia Satterwhite

The exteriors have black fusion crust, patches on some surfaces; areas without fusion crust are black/gray with brown weathered areas; abundant inclusions/chondrules of various sizes and colors are visible; surfaces are pitted in areas. The interiors are dark gray to black in areas with some brown oxidation; abundant inclusions/chondrules of various sizes and colors are present.

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

The sections exhibit large (up to 2 mm), well-defined, metal-rich chondrules and CAIs in a dark matrix of FeO-rich phyllosilicate. Polysynthetically twinned pyroxene is abundant. Silicates are unequilibrated; olivines range from Fa_1-38, with most Fa_0-2, and pyroxenes from Fs_9-19Wo_1-2. The meteorites are likely paired CR2 chondrites.

Antarctic Meteorite Images for Sample GRO 17064

Thin Section Photo of Sample GRO 17064 in Reflected Light with 5X Magnification

Lab Photo of Sample GRO 17064 Displaying West Orientation

Lab Photo of Sample GRO 17064 Displaying Bottom Orientation

Lab Photo of Sample GRO 17064 Displaying Splits View

Lab Photo of Sample GRO 17064 Displaying East Orientation

Lab Photo of Sample GRO 17064 Displaying North Orientation

Lab Photo of Sample GRO 17064 Displaying Top Orientation

Lab Photo of Sample GRO 17064 Displaying South Orientation

Thin Section Photo of Sample GRO 17064 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample GRO 17064 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample GRO 17064 in Reflected Light with 2.5X Magnification

Data from:
  MB107
  Table 0
  Line 0:

Date:	2017
Mass (g):	226.400
Pieces:	1
Class:	CR2
Weathering grade:	B
Fayalite (mol%):	1-36
Ferrosilite (mol%):	9-19
Magnetic suscept.:	3.87
Classifier:	SI
Type spec mass (g):	226.400
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 44048 approved meteorites from Antarctica (plus 3802 unapproved names)

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