Meteoritical Bulletin: Entry for Miller Range 15328

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Miller Range 15328

Basic information

Name: Miller Range 15328
This is an OFFICIAL meteorite name.
Abbreviation: MIL 15328
Observed fall: No
Year found: 2015
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 321 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 40(1)	(2017)	CR2
Meteoritical Bulletin:	MB 106	(2018)	CR2
Recommended:			CR2 [explanation]

This is 1 of 175 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Comments:

Field number: 23047
Approved 25 Feb 2017

Writeup

help

Writeup from AMN 40(1):

Sample Number

MIL 15328

Newsletter

40,1

Location

Miller Range

Field Number

23047

Dimensions

7.0 x 5.5 x 5.5

Weight

320.60

Original Classification

CR2 Chondrite

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 1-33

B

B/C

Macroscopic Description - Cecilia Satterwhite

90% black fractured fusion crust covers the exterior surface; abundant fractures penetrate the surface; light colored and weathered inclusions/chondrules are visible on the exterior surface. The interior is a dark gray to black matrix with abundant inclusions/chondrules of various sizes and colors, some are weathered; the meteorite is heavily weathered in areas along the fractures, has a crumbly texture and some rusty areas.

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

The section exhibits a range of chondrule sizes (500 micron to 2 mm), that are well-defined and metal-rich along with CAIs in a dark matrix of FeO-rich phyllosilicate. Polysynthetically twinned pyroxene is abundant in chondrules. Silicates are unequilibrated; olivines range from Fa_1-33, with most Fa_0-2, and pyroxenes from Fs_2-4Wo₁. The meteorite is probably a CR2 chondrite.

Antarctic Meteorite Images for Sample MIL 15328

Lab Photo of Sample MIL 15328 Displaying Splits View

Lab Photo of Sample MIL 15328 Displaying Post Processing View

Lab Photo of Sample MIL 15328 Displaying Bottom Orientation

Lab Photo of Sample MIL 15328 Displaying East Orientation

Lab Photo of Sample MIL 15328 Displaying North Orientation

Lab Photo of Sample MIL 15328 Displaying “Pie Shot” View

Lab Photo of Sample MIL 15328 Displaying South Orientation

Lab Photo of Sample MIL 15328 Displaying Top Orientation

Lab Photo of Sample MIL 15328 Displaying West Orientation

Thin Section Photo of Sample MIL 15328 in Plane-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15328 in Reflected Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15328 in Cross-Polarized Light with 2.5X Magnification

Thin Section Photo of Sample MIL 15328 in Plane-Polarized Light with 5X Magnification

Thin Section Photo of Sample MIL 15328 in Reflected Light with 5X Magnification

Thin Section Photo of Sample MIL 15328 in Cross-Polarized Light with 5X Magnification

Data from:
  MB106
  Table 0
  Line 0:

Date:	2015
Mass (g):	320.6
Pieces:	1
Class:	CR2
Weathering grade:	B
Fayalite (mol%):	1-33
Ferrosilite (mol%):	2-4
Classifier:	SI
Type spec mass (g):	320.6
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

Antarctica

Coordinates:
Recommended::	(83° 33' 20"S, 156° 59' 2"E)

Statistics:
This is 1 of 40849 approved meteorites from Antarctica (plus 4494 unapproved names)

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