Meteoritical Bulletin: Entry for Rosamond

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Rosamond

Basic information

Name: Rosamond
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2012
Country: United States
Mass: 11.1 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	LL3
Recommended:			LL3 [explanation]

This is 1 of 487 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 6 May 2013

Writeup

help

Writeup from MB 102:

Rosamond 34°49.676’N, 118°8.784’W

Kern County, California, United States

Found: 2012 June 9

Classification: Ordinary chondrite (LL3)

History: Found by Robert Verish on June 9, 2012, while he was searching for meteorites in an empty lot on the outskirts of the town of Rosamond.

Physical characteristics: Yellowish-brown tabular-shaped, weathered fragment of a chondritic stone. Through a thin, patchy relict fusion-crust, large chondrules which were flattened and are in a preferred-orientation, could be discerned easily with a hand-lens.

Petrography: (A. Rubin, UCLA): The rock has large chondrules, averaging about 600 μm in diameter, consistent with LL chondrites. The rock has a pronounced petrofabric.

Geochemistry: Fa_13.5±11.0(n=4), range Fa_0.7-25.0; Fs_15.7±12.1Wo_0.8±0.6(n=16), range Fs_1.6-31.7; the low-Ca pyroxene Fs distribution has a broad peak between Fs₂₃and Fs₃₂, consistent with a low petrologic grade LL chondrite.

Specimens: 3.45 g type specimen at UCLA; main mass with Verish.

Data from:
  MB102
  Table 0
  Line 0:

State/Prov/County:	California
Origin or pseudonym:	coppice dunes
Date:	2012 June 9
Latitude:	34°49.676'N
Longitude:	118°8.784'W
Mass (g):	11.10
Pieces:	1
Class:	LL3
Shock stage:	S4
Weathering grade:	W5
Fayalite (mol%):	13.5±11.0 (n=4)
Ferrosilite (mol%):	15.7±12.1 (n=16)
Wollastonite (mol%):	0.8±0.6
Classifier:	A. Rubin, UCLA
Type spec mass (g):	3.45
Type spec location:	UCLA
Main mass:	Verish
Finder:	R. S. Verish
Comments:	Submitted by Verish

Institutions
and collections

UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015

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Geography:

United States

United States

Coordinates:
Recommended::	(34° 49' 41"N, 118° 8' 47"W)

Statistics:
This is 1 of 269 approved meteorites from California, United States (plus 24 unapproved names)
This is 1 of 1927 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)

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Revision
history:

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