Meteoritical Bulletin: Entry for MacKay Glacier 14001

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MacKay Glacier 14001

Basic information

Name: MacKay Glacier 14001
This is an OFFICIAL meteorite name.
Abbreviation: MCY 14001
Observed fall: No
Year found: 2015
Country: Antarctica [Collected by Programma Nazionale di Ricerche in Antartide (PNRA), Italy]
Mass: 1.3 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Comments:

Approved 3 May 2019

Writeup

Writeup from MB 108:

MacKay Glacier 14001 (MCY 14001) 77°14.084’S, 158°07.606’E

Antarctica

Find: 2015 Jan 14

Classification: Carbonaceous chondrite (CM2)

Physical characteristics: 1.5 × 1.5 × 1 cm, angular shape, uncrusted, dark colour, chondrule in relief (15 vol%)

Petrography: Chondrule abundance: 20%. Average apparent chondrule diameter: 250 µm. CAI Abundance: 7%. Phyllosilicate in chondrule mesostasis; modest alteration of mafic silicates in chondrules. Abundant phyllosilicates in matrix. Silica plus Al₂O₃ = 13 wt%, FeO = 53 wt% and MgO = 13 wt%.

Geochemistry: Olivine: Fa_0.3-57, Low-Ca pyroxene Fs_0.6-5Wo_0.15-5

Classification: Carbonaceous chondrite (CM2). Paired with MCY 14004 and MCY 14014.

Data from:
  MB108
  Table 0
  Line 0:

Origin or pseudonym:	McKay Glacier Icefields
Date:	2015 Jan 14
Latitude:	77°14.084'S
Longitude:	158°07.606'E
Mass (g):	1.3
Pieces:	1
Class:	CM2
Shock stage:	S1
Weathering grade:	W0
Fayalite (mol%):	14.8 ± 18.2
Ferrosilite (mol%):	1.8 ± 1.3
Wollastonite (mol%):	1.9 ± 1.6
Magnetic suscept.:	3.80
Classifier:	S. Genovesi, J. Nava, UniBo, UniPd
Type spec mass (g):	1.3
Type spec location:	MNA-SI
Main mass:	MNA-SI
Finder:	Jacopo Nava
Comments:	Pairing group MCY 14014; submitted by L. Folco (DST UniPi)

Institutions
and collections

MNA-SI: Museo Nazionale dell'Antartide, Università di Siena, Via Laterina 8, I-53100 Siena, Italy; Website (institutional address; updated 13 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

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Geography:

Antarctica

Coordinates:
Recommended::	(77° 14' 5"S, 158° 7' 36"E)

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
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