Meteoritical Bulletin: Entry for Miller Range 15558

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Miller Range 15558

Basic information

Name: Miller Range 15558
This is an OFFICIAL meteorite name.
Abbreviation: MIL 15558
Observed fall: No
Year found: 2015
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 3.63 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 42(2)	(2019)	CO3
Meteoritical Bulletin:	MB 108	(2020)	CO3
Recommended:			CO3 [explanation]

This is 1 of 645 approved meteorites (plus 1 unapproved name) classified as CO3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Approved 14 Aug 2019

Writeup

Writeup from AMN 42(2):

Sample Number

MIL 15558

Newsletter

42,2

Location

Miller Range

Field Number

23006

Dimensions

1.8 x 1.5 x 1.0

Weight

3.63

Original Classification

CO3 Chondrite

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 1-50;Ferrosilite (mol%): 1-2

Weathering

Fracturing

Macroscopic Description - Cecilia Satterwhite

85% black fusion crust with oxidation covers the exterior. The interior is a dark gray to black matrix with oxidation and weathered inclusions/chondrules.

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

The section consists of abundant small (up to 1 mm) chondrules, chondrule fragments and mineral grains in a dark matrix. Metal and sulfide occur within and rimming the chondrules. Olivine ranges in composition from Fa_1-50. Two pyroxene analyses range from Fs_1-2. Terrestrial weathering effects are modest. The meteorite is a CO3 chondrite.

Antarctic Meteorite Images for Sample MIL 15558

Thin Section Photo of Sample MIL 15558 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15558 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15558 in Plane-Polarized Light with 2.5X Magnification

Data from:
  MB108
  Table 0
  Line 0:

State/Prov/County:	Antarctica
Date:	2015
Latitude:	-83.4
Longitude:	156.079
Mass (g):	3.626
Pieces:	1
Class:	CO3
Weathering grade:	B
Fayalite (mol%):	1-50
Ferrosilite (mol%):	1-2
Classifier:	SI
Type spec mass (g):	3.626
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 42(2) (2019), JSC, Houston
Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

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Geography:

Antarctica

Coordinates:
Recommended::	(83° 24' 0"S, 156° 4' 44"E)

Statistics:
This is 1 of 44547 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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