Meteoritical Bulletin: Entry for Coaldale

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Coaldale

Basic information

Name: Coaldale
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: United States
Mass: 190 g

Classification
history:

Meteoritical Bulletin:	MB 112	(2024)	H4
Recommended:			H4 [explanation]

This is 1 of 6556 approved meteorites (plus 2 unapproved names) classified as H4. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 16 Jan 2023

Writeup

help

Writeup from MB 112:

Coaldale 38.008°N, 117.654°W

Nevada, United States

Find: 2022 Apr 23

Classification: Ordinary chondrite (H4)

History: Found by Sonny Clary on April 23, 2022, at a desert location south of McLeans and west of Coaldale, Nevada.

Physical characteristics: A single dark stone (190 g) lacking fusion crust.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively small, well-formed equilibrated chondrules containing devitrified glass are set in a relatively coarse grained matrix containing altered kamacite, taenite and troilite, but no plagioclase.

Geochemistry: Olivine (Fa_16.6±0.2, range Fa_16.5-16.8, N = 4), low-Ca pyroxene (Fs_14.8±0.3Wo_0.6±0.3, range Fs_14.5-15.1Wo_0.4-0.9, N = 3), pigeonite (Fs_13.7Wo_6.3), augite (Fs_8.2±3.5Wo_42.2±0.3, range Fs_5.7-10.6Wo_42.4-42.0, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 36.5 g including one covered thin section and one polished slice at UWB; remainder with Mr. R. Clary.

Data from:
  MB112
  Table 0
  Line 0:

State/Prov/County:	Nevada
Date:	2022 Apr 23
Latitude:	38.008°N
Longitude:	117.654°W
Mass (g):	190
Pieces:	1
Class:	H4
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	16.6±0.2
Ferrosilite (mol%):	14.8±0.3
Wollastonite (mol%):	0.6±0.3
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	36.5
Type spec location:	UWB
Main mass:	R. Clary
Finder:	R. Clary
Comments:	Work name SC22-2; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Clary: Ralph "Sonny" Clary, Las Vegas, NV 89131 , United States; Website (private address; updated 3 Jan 2010)

Catalogs:

References:

Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Cartier C., Consolmagno G., Goodrich C., Greshake A., Gross J., Joy K. H., Miao B. and Zhang B. (2024) The Meteoritical Bulletin, no. 112. Meteoritics & Planetary Science 59, 1820–1823. ?

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Geography:

United States

United States

Coordinates:
Recommended::	(38° 0' 29"N, 117° 39' 14"W)

Statistics:
This is 1 of 185 approved meteorites from Nevada, United States (plus 4 unapproved names)
This is 1 of 1934 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)

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