Meteoritical Bulletin: Entry for Miller Range 15362

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Miller Range 15362

Basic information

Name: Miller Range 15362
This is an OFFICIAL meteorite name.
Abbreviation: MIL 15362
Observed fall: No
Year found: 2015
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 42.6 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 42(1)	(2019)	Chondrite-ung
Meteoritical Bulletin:	MB 108	(2020)	Chondrite-ung
Antarctic Meteorite Newsletter:	AMN 44(1)	(2021)	H4-an
Recommended:			H4-an [explanation]

This is 1 of 24 approved meteorites classified as H4-an. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 21 Feb 2019
Revised 13 Mar 2021: Reclassified in AMN 44(1)

Writeup

help

Writeup from AMN 42(2):

Sample Number

MIL 15362

Newsletter

42,1

Location

Miller Range

Field Number

23621

Dimensions

4.6 x 2.8 x 1.9

Weight

42.630

Original Classification

Chondrite Ungrouped

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 16;Ferrosilite (mol%): 9-26

B/C

A

Macroscopic Description - Cecilia Satterwhite

The exterior has 60% black/brown fusion crust with oxidation haloes, and rust. Exposed surfaces are brown with inclusions/chondrules visible. The interior is weathered brown with metal and some rusty/weathered inclusions/chondrules.

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

The section exhibits numerous small, well-defined chondrules up to 1.5 mm in a black matrix of fine grained silicates, metal and troilite. Polysynthetically twinned pyroxene is abundant. The meteorite is moderately weathered. Olivine is Fa₁₆, pyroxene is Fs_9-26. The meteorite is a low FeO chondrite of type 4 (Russell et al. MAPS 1998). The meteorite is similar in mineral compositions to Willaroy and Suwahib (Buwah).

Antarctic Meteorite Images for Sample MIL 15362

Thin Section Photo of Sample MIL 15362 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15362 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15362 in Reflected Light with 5X Magnification

Thin Section Photo of Sample MIL 15362 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15362 in Plane-Polarized Light with 5X Magnification

Thin Section Photo of Sample MIL 15362 in Cross-Polarized Light with 5X Magnification

Thin Section Photo of Sample MIL 15362 in Cross-Polarized Light with 5X Magnification

Lab Group Photo of Sample MIL 15362 Displaying North Orientation

Thin Section Photo of Sample MIL 15362 in Reflected Light with 5X Magnification

Thin Section Photo of Sample MIL 15362 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15362 in Plane-Polarized Light with 5X Magnification

Thin Section Photo of Sample MIL 15362 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15362 in Plane-Polarized Light with 2.5X Magnification

Data from:
  MB108
  Table 0
  Line 0:

Date:	2015
Latitude:	-83.1795
Longitude:	155.842
Mass (g):	42.625
Pieces:	1
Class:	Chondrite-ung
Weathering grade:	B/C
Fayalite (mol%):	16
Ferrosilite (mol%):	9-26
Magnetic suscept.:	4.93
Classifier:	SI
Type spec mass (g):	42.625
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET
Comments:	Field no: 23621; 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 42(1) (2019), JSC, Houston
Published in Antarctic Meteorite Newsletter 42(2) (2019), JSC, Houston
Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(83° 10' 46"S, 155° 50' 31"E)

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

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Revision
history:

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