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Reckling Peak A79015
Basic information Name: Reckling Peak A79015
     This is an OFFICIAL meteorite name.
Abbreviation: RKPA79015
This meteorite may also be called Reckling Peak 79015 (RKP 79015) in publications.

Observed fall: No
Year found: 1979 or 1980
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 10.02 kg
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 3(3)  (1980)  Iron w/silicate (orthopyroxene?) inclusions
AMN 4(1)  (1981)  Iron w/silicate inclusions
AMN 7(1)  (1984)  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
Writeuphelp
Writeup from AMN 3(3):
This text was reprinted from AMN 3(3) in AMN 4(1). In some cases, it may be an updated version from the original.

Sample No.: RKPA79015

Location: Reckling Peak

Field No.: 1180

Weight (gms): 10022.0

Meteorite Type: Iron with silicate (orthopyroxene?) inclusions

 

Physical Description: Roberta Score,

The overall color of this meteorite is deep reddish-brown. Many greenish-brown, platey silicate inclusions as large as 1.2 cm are obvious. The dimensions of this sample are ~26 x 18.5 x 13 cm.

 

Petrographic Description: Arch Reid

The meteorite is an iron with slightly weathered exterior in which are set silicate fragments about 5 mm in average size. The most common fragments of this type are greenish single crystals showing cleavage that are probably orthopyroxenes. These silicate fragments appear to be present throughout the meteorite. To confirm their presence in the interior a ~.5 cm slice was cut from a protruding portion (slice is triangular, approximately 4 x 2.5 cm). The major portion of the slice is kamacite with lesser taenite. Approximately ten percent of the interior consists of ellipsoidal to subangular inclusions which are dominantly troilite, silicate, or troilite plus silicate. The silicate has the composition of a magnesian orthopyroxene in the largest inclusion, a second phase may be intergrown with the pyroxene. Other phases present include chromite and schreibersite. The composition of the pyroxene has not been accurately determined but is estimated to be around Wo2En73Fs25. The meteorite is an iron with abundant silicate inclusions.

Data from:
  MB76
  Table 2
  Line 5388:
Mass (g):10022
Class:Meso
Weathering grade:A/B
Ferrosilite (mol%):24
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 3(3) (1980), 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' 55"S, 158° 32' 21"E)
Note: the NHM and MetBase coordinates are 19.7 km apart

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)
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