Meteoritical Bulletin: Entry for Reckling Peak A80229

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Reckling Peak A80229

Basic information

Name: Reckling Peak A80229
This is an OFFICIAL meteorite name.
Abbreviation: RKPA80229
This meteorite may also be called Reckling Peak 80229 (RKP 80229) in publications.
Observed fall: No
Year found: 1980
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 14.1 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 5(1)	(1982)	Mesosiderite
Meteoritical Bulletin:	MB 76	(1994)	Mesosiderite
NHM Catalogue:	5th Edition	(2000)	Mesosiderite
MetBase:	v. 7.1	(2006)	Mesosiderite-AN
Recommended:			Mesosiderite-an [explanation]

This is 1 of 7 approved meteorites classified as Mesosiderite-an. [show all]
Search for other: Mesosiderites, Metal-rich meteorites

Writeup

Writeup from AMN 5(1):

Sample No.: RKPA80229

Location: Reckling Peak

Field No.: 1395

Weight (gms): 14.1

Meteorite Type: Mesosiderite

Physical Description: Roberta Score

No fusion crust remains on this weathered meteorite. Many single crystals of pyroxene are scattered on the surface. The largest is 3 x 3 mm in dimension and fell out during chipping. The interior is highly weathered. Sample is paired with RKPA80246, RKPA80258, and RKPA80263. Dimensions: 3 x 2 x 1.5 cm

Petrographic Description: Brian Mason

The section shows clasts of orthopyroxene, up to 2 mm across, in a nickel-iron matrix (the matrix extensively altered to limonite). Microprobe analyses show the pyroxene has essentially uniform composition, Wo2En74Fs24. This specimen is a weathered fragment of RKPA79015.

Data from:
  MB76
  Table 2
  Line 5416:

Mass (g):	14.1
Class:	Meso
Weathering grade:	C
Ferrosilite (mol%):	24

Catalogs:

Search for specimens in the Smithsonian Institution collection (U.S.):	Require SI photo
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References:

Published in Antarctic Meteorite Newsletter 5(1) (1982), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)

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Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(76° 16'S, 159° 15'E)
Recommended::	(76° 12' 28"S, 158° 29' 37"E)

Note: the NHM and MetBase coordinates are 21.1 km apart

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

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