Meteoritical Bulletin: Entry for Roberts Massif 04251

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Roberts Massif 04251

Basic information

Name: Roberts Massif 04251
This is an OFFICIAL meteorite name.
Abbreviation: RBT 04251
Observed fall: No
Year found: 2004
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 19.5 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 30(2)	(2007)	H3
Recommended:			H3 [explanation]

This is 1 of 710 approved meteorites (plus 2 unapproved names) classified as H3. [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 31 Aug 2007

Writeup

Writeup from AMN 30(2):

Sample No.:	RBT 04251
Location:	Roberts Massif
Field No.:	16342
Dimensions (cm):	2.0 x 2.0 x 1.5
Weight (g):	19.542
Meteorite Type:	H3 Chondrite

Macroscopic Description: Kathleen McBride
100% of the exterior is covered by brown/black fusion crust with oxidation haloes. The interior is a rusty black matrix with gray chondrules and a high metal content.

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section exhibits numerous well-defined chondrules of a range of sizes (up to 2.6 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects and weathering are present. Silicates are unequilibrated; olivines range from Fa_1-20 and pyroxenes from Fs_1-6. The meteorite is an H3 chondrite (estimated subtype 3.4).

Thin Section Images

Plane-Polarized Light RBT 04251	Cross Polarized Light RBT 04251

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)

Find references in NASA ADS:
Find references in Google Scholar:

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:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page