Meteoritical Bulletin: Entry for MacKay Glacier 05239

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MacKay Glacier 05239

Basic information

Name: MacKay Glacier 05239
This is an OFFICIAL meteorite name.
Abbreviation: MCY 05239
Observed fall: No
Year found: 2005
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 19.3 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 30(1)	(2007)	Mesosiderite
Meteoritical Bulletin:	MB 92	(2007)	Mesosiderite
Recommended:			Mesosiderite [explanation]

This is 1 of 273 approved meteorites classified as Mesosiderite. [show all]
Search for other: Mesosiderites, Metal-rich meteorites

Comments:

Approved 16 Feb 2007

Writeup

Writeup from AMN 30(1):

Sample No.:	MCY 05239
Location:	MacKay Glacier
Field No.:	17363
Dimensions (cm):	3.0x2.0x1.5
Weight (g):	19.344
Meteorite Type:	Mesosiderite

Macroscopic Description: Kathleen McBride
100% of the exterior is covered with rusty brown/black fusion crust. The interior has a rusty, granular textured matrix with high metal.

Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The section is a breccia composed of angular isolated grains up to 1.0 mm and clasts of orthopyroxene (Fs_27-36Wo₄), olivine (Fa_34-39, anorthitic feldspar (An_90-95 Or_0-1), metal, troilite and oxides. Minor iron oxide staining is present. The meteorite is a mesosiderite.

Thin Section Images

Cross-Polarized Light MCY 05239	Plane-Polarized Light MCY 05239

Lab Images

Data from:
  MB92
  Table 3
  Line 701:

Mass (g):	19.3
Class:	Mes
Weathering grade:	C
Fayalite (mol%):	34-39
Ferrosilite (mol%):	27-36

Catalogs:

Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 30(1) (2007), JSC, Houston
Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)

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Photos:

Credit	Photos
Photographs from AMN:
JSC	A photo is in the write-up above

Geography:

Antarctica

Coordinates:

Unknown.

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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