Meteoritical Bulletin: Entry for Ramlat as Sahmah 534

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Ramlat as Sahmah 534

Basic information

Name: Ramlat as Sahmah 534
This is an OFFICIAL meteorite name.
Abbreviation: RaS 534
Observed fall: No
Year found: 2019
Country: Oman
Mass: 432 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	L4
Recommended:			L4 [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 24 Dec 2021

Writeup

Writeup from MB 110:

Ramlat as Sahmah 534 (RaS 534) 20.083° N, 55.752° E

Al Wusta, Oman

Find: 2013

Classification: Ordinary chondrite (L4)

History: Found in Oman in 2013 and purchased in December 2019 by Jason Whitcomb from a dealer in Edinburgh, UK.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed chondrules are set in a recrystallized matrix containing extensively altered metal, chromite, troilite, chlorapatite and merrillite. Some chondrules contain devitrified glass but most contain sodic plagioclase. Plagioclase is absent from the matrix.

Geochemistry: Olivine (Fa_25.1±0.7, range Fa_24.2-25.7, N = 6), low-Ca pyroxene (Fs_21.4±1.4Wo_1.5±0.1, range Fs_20.5-24.1Wo_1.4-1.8, N = 6).

Classification: Ordinary chondrite (L4).

Specimens: 31.0 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Al Wusta
Place of purchase:	Edinburgh, UK
Date:	2013
Latitude:	20.083° N
Longitude:	55.752° E
Mass (g):	432
Pieces:	1
Class:	L4
Shock stage:	S2
Weathering grade:	W3
Fayalite (mol%):	25.1±0.7
Ferrosilite (mol%):	21.4±1.4
Wollastonite (mol%):	1.5±0.1
Classifier:	A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):	31.0
Type spec location:	PSF
Main mass:	J. Whitcomb
Comments:	Work name JW-17; submitted by A. Irving

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Oman

Coordinates:
Recommended::	(20° 4' 59"N, 55° 45' 7"E)

Statistics:
This is 1 of 1753 approved meteorites from Al Wusta, Oman (plus 81 unapproved names)
This is 1 of 3998 approved meteorites from Oman (plus 441 unapproved names)

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Revision
history:

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