Meteoritical Bulletin: Entry for Roberts Massif 04143

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Roberts Massif 04143

Basic information

Name: Roberts Massif 04143
This is an OFFICIAL meteorite name.
Abbreviation: RBT 04143
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 89.6 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 30(2)	(2007)	CV3
	AMN 46(1)	(2023)	CVred3.6
Recommended:			CVred3.6 [explanation]

This is 1 of 39 approved meteorites classified as CVred3.6. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 31 Aug 2007
Revised 27 Mar 2024: Reclassified in AMN 46(1)

Writeup

Writeup from AMN 30(2):

Sample No.:	RBT 04143
Location:	Robert Massif
Field No.:	16244
Dimensions (cm):	4.0 x 3.5 x 3.0
Weight (g):	89.562
Meteorite Type:	CV3 Chondrite

Macroscopic Description: Kathleen McBride
50% striated rusty brown to black rough fusion crust covers the exterior. The interior is a black matrix with high metal content and is hard. It has chondrules and clasts of various colors.

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section exhibits large chondrules (up to 2 mm) and CAIs in a dark matrix. Olivines range from Fa_1-69, with most Fa_1-2, pyroxene is Fs_1-3. The meteorite is an unequilibrated carbonaceous chondrite, probably a CV3.

Thin Section Images

Plane-Polarized Light RBT 04143	Cross Polarized Light RBT 04143

Lab Images

Catalogs:

Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 30(2) (2007), JSC, Houston
Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)

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Photos:

Credit	Photos
Photographs from AMN:
JSC	A photo is in the write-up above

Geography:

Antarctica

Coordinates:

Unknown.

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

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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