Meteoritical Bulletin: Entry for Miller Range 13180

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Miller Range 13180

Basic information

Name: Miller Range 13180
This is an OFFICIAL meteorite name.
Abbreviation: MIL 13180
Observed fall: No
Year found: 2013
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 1.1 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 40(1)	(2017)	Ureilite
Meteoritical Bulletin:	MB 106	(2018)	Ureilite
Recommended:			Ureilite [explanation]

This is 1 of 604 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Field number: 21725
Approved 25 Feb 2017

Writeup

Writeup from AMN 40(1):

Sample Number

MIL 13180

Newsletter

40,1

Location

Miller Range

Field Number

21725

Dimensions

1.0 x 1.0 x 0.5

Weight

1.14

Original Classification

Ureilite

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 12-13; Ferrosilite (mol%): 11

Weathering

Fracturing

Macroscopic Description - Cecilia Satterwhite

98% of the exterior has black/brown fusion crust. The dark gray to black matrix has metal and some oxidation.

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

The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine compositions are nearly homogeneous at Fa_12-13. Pigeonite compositions are Fs₁₁,Wo₆ and augite compositions are Fs_1-2Wo₄₂. The meteorite is a ureilite.

Antarctic Meteorite Images for Sample MIL 13180

Lab Group Photo of Sample MIL 13180 Displaying North Orientation

Thin Section Photo of Sample MIL 13180 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 13180 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample MIL 13180 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 13180 in Plane-Polarized Light with 5X Magnification

Thin Section Photo of Sample MIL 13180 in Reflected Light with 5X Magnification

Thin Section Photo of Sample MIL 13180 in Cross-Polarized Light with 5X Magnification

Data from:
  MB106
  Table 0
  Line 0:

Date:	2013
Mass (g):	1.1
Pieces:	1
Class:	Ureilite
Weathering grade:	B
Fayalite (mol%):	12-13
Ferrosilite (mol%):	11
Classifier:	SI
Type spec mass (g):	1.1
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET
Comments:	Submitted by AMN

Institutions
and collections

JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
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 40(1) (2017), JSC, Houston
Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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Geography:

Antarctica

Coordinates:
Recommended::	(83° 32' 32"S, 156° 55' 37"E)

Statistics:
This is 1 of 43332 approved meteorites from Antarctica (plus 3802 unapproved names)

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