Meteoritical Bulletin: Entry for Cactus Forest (a)

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Cactus Forest (a)

Basic information

Name: Cactus Forest (a)
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2017
Country: United States
Mass: 63 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 13 Nov 2021

Writeup

Writeup from MB 110:

Cactus Forest (a) 32°56’24.51"N, 111°23’07.55"W

Arizona, United States

Find: 2017 April 1

Classification: Ordinary chondrite (L4)

History: Larry Atkins found a 63 g meteorite ~6 km west of Cactus Forest on 1 April 2017.

Physical characteristics: Weathered and orange stained meteorite. Cut surface shows abundand iron-oxide veins. All metal, and most sulfide is weathered.

Petrography: (L. Garvie, ASU) BSE images of the probe mount shows an abundance of chondrules (PO, POP, BO, CC), with a mean near 500 μm. Interchondrule feldspar <5 μm across.

Geochemistry: Olivine Fa_23.9±1.7, range Fa_22.6-27.4, NiO to 0.35 wt% and Cr₂O₃ to 0.9 wt%, Fe/Mn= 47.5±5.1, n=10. low Ca pyroxene Fs_15.3±6.5Wo_1.1±1.2, range Fs_7.3-32.6Wo_0.2-3.6, n=12. high Ca pyroxene Fs_7.3Wo_44.3and Fs_10.7Wo_39.8.

Classification: L4

Specimens: 12.6 g at ASU.

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Arizona
Origin or pseudonym:	deflation area
Date:	2017 April 1
Latitude:	32°56'24.51"N
Longitude:	111°23'07.55"W
Mass (g):	63
Pieces:	1
Class:	L4
Shock stage:	low
Weathering grade:	high
Fayalite (mol%):	23.9±1.7
Ferrosilite (mol%):	15.3±6.5
Wollastonite (mol%):	1.1±1.2
Classifier:	L. Garvie, ASU
Type spec mass (g):	12.6
Type spec location:	ASU
Main mass:	Larry Atkins
Finder:	Larry Atkins
Comments:	ASU#2052; submitted by L. Garvie

Institutions
and collections

ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)

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:

United States

Coordinates:
Recommended::	(32° 56' 25"N, 111° 23' 8"W)

Statistics:
This is 1 of 179 approved meteorites from Arizona, United States (plus 1 impact crater)
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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