Meteoritical Bulletin: Entry for Miller Range 15552

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Miller Range 15552

Basic information

Name: Miller Range 15552
This is an OFFICIAL meteorite name.
Abbreviation: MIL 15552
Observed fall: No
Year found: 2015
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 2.19 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 42(2)	(2019)	R4
Meteoritical Bulletin:	MB 108	(2020)	R4
Recommended:			R4 [explanation]

This is 1 of 70 approved meteorites classified as R4. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)

Comments:

Approved 14 Aug 2019

Writeup

Writeup from AMN 42(2):

Sample Number

MIL 15552

Newsletter

42,2

Location

Miller Range

Field Number

23658

Dimensions

1.8 x 1.0 x 0.6

Weight

2.19

Original Classification

R4 Chondrite

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 39;Ferrosilite (mol%): 9-16

Weathering

Fracturing

A/B

Macroscopic Description - Cecilia Satterwhite

Exterior has 90% black fractured fusion crust with exposed dark gray to black interior. The interior is a dark gray to black matrix with some oxidation. Light colored and weathered inclusions/chondrules are visible.

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

This section consists of ~50% distinct chondrules (up to 2 mm) and chondrule fragments set in a slightly recrystallized matrix of silicates, sulfides and chromite. Olivines are homogenous at Fa₃₉, while pyroxenes range from Fs_9-16. The meteorite is heavily shocked. The meteorite is an R4 chondrite.

Antarctic Meteorite Images for Sample MIL 15552

Thin Section Photo of Sample MIL 15552 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15552 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15552 in Cross-Polarized Light with 2.5X Magnification

Data from:
  MB108
  Table 0
  Line 0:

State/Prov/County:	Antarctica
Date:	2015
Latitude:	-83.5198
Longitude:	157.15
Mass (g):	2.187
Pieces:	1
Class:	R4
Weathering grade:	B
Fayalite (mol%):	39
Ferrosilite (mol%):	9-16
Classifier:	SI
Type spec mass (g):	2.187
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

Find references in NASA ADS:
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Geography:

Antarctica

Coordinates:
Recommended::	(83° 31' 11"S, 157° 9' 0"E)

Statistics:
This is 1 of 45041 approved meteorites from Antarctica (plus 3472 unapproved names)

Proximity search:

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