Meteoritical Bulletin: Entry for Miller Range 090001

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Miller Range 090001

Basic information

Name: Miller Range 090001
This is an OFFICIAL meteorite name.
Abbreviation: MIL 090001
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 6.29 kg

Classification
history:

Antarctic Meteorite Newsletter:	AMN 33(2)	(2010)	CV3
Meteoritical Bulletin:	MB 99	(2011)	CV3
Recommended:			CR2 [explanation]

This is 1 of 188 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Comments:

Field number: 20895
Approved 12 Sep 2010
Revised 25 Feb 2012: Reclassified in AMN 35(1)

Writeup

help

Writeup from AMN 33(2):

Sample Number	MIL 090001
Newsletter	33,2
Location	Miller Range
Field Number	20895
Dimensions	19.0 x 16.0 x 12.5
Weight	6290
Original Classification	CV3 Chondrite
Macroscopic Description - Roger Harrington
40% of the exterior of this sample is covered with a dull black fusion crust. The remaining 60% is a broken surface which consists of dark brown fine-grained matrix with scattered 1-3 mm tan to orangish tan chondrules. The interior is a dark brown fine-grained matrix with scattered 1-3 mm tan to orangish tan chondrules.
Thin Section (,2) Description - Cari Corrigan, Tim McCoy and Linda Welzenbach
This section exhibits large chondrules (up to 3 mm) and CAIs in a brownish-green matrix that appears to be extensively aqueously altered. Alteration extends into the chondrules. Olivines range from Fa_2-24 and low-Ca pyroxene is Fs_1-12. The meteorite is an unequilibrated carbonaceous chondrite, probably a reduced CV3.

Antarctic Meteorite Images for Sample MIL 090001

Writeup from AMN 35(1):

Classification Update (AMN 35,1)

New analyses of MIL 090001 indicate that it is a CR2 chondrite. Oxygen isotope analysis (Keller et al., 2012 LPSC abstract; 2065; Alexander et al. 2012 LPSC abstract 2799) and bulk rock analysis (Isa et al. 2012 LPSC abstract; 2809) both indicate overlap with CR chondrites (lower Zn, Sc and Sm than CV).

Data from:
  MB99
  Table 0
  Line 0:

Date:	2009
Mass (g):	6290
Class:	CV3
Weathering grade:	B
Fayalite (mol%):	2-24
Ferrosilite (mol%):	1-12
Classifier:	SI
Type spec mass (g):	6290
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET

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 33(2) (2010), JSC, Houston
Published in Antarctic Meteorite Newsletter 35(1) (2012), JSC, Houston
Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(83° 23' 3"S, 156° 18' 11"E)

Statistics:
This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names)

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