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Reckling Peak A79012
Basic information Name: Reckling Peak A79012
     This is an OFFICIAL meteorite name.
Abbreviation: RKPA79012
This meteorite may also be called Reckling Peak 79012 (RKP 79012) in publications.

Observed fall: No
Year found: 1979 or 1980
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 12.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 4(1)  (1981)  H6
Meteoritical Bulletin:  MB 76  (1994)  H6
NHM Catalogue:  5th Edition  (2000)  H6
MetBase:  v. 7.1  (2006)  H6
Recommended:  H6    [explanation]

This is 1 of 6132 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from AMN 4(1):

Sample No.: RKPA79012

Location: Reckling Peak

Field No.: 1202 4 Weight (gms): 12.8

Meteorite Type: H6 Chondrite

 

Physical Description: Roberta Score

Stone is totally covered with black and brown fusion crust. Several cracks penetrate the meteorite. The interior of the stone has a 0.5 cm thick weathering rind. Only a small amount of gray-colored unweathered material exists. Dimensions: 2.5 x 2 x 1 cm.

 

Petrographic Description: Brian Mason

Chondrules are sparse and poorly defined, tending to merge with the granular groundmass, which consists largely of olivine and pyroxene, with minor amounts of nickel-iron, troilite, and plagioclase. Fusion crust, up to 0.6 mm thick, rims much of the section. The meteorite shows a moderate degree of weathering indicated by brown limonitic material concentrated in the fusion crust and around nickel-iron grains. Microprobe analyses give the following compositions: olivine, Fa18, pyroxene, Fs16; plagioclase, An13. The meteorite is classified as an H6 chondrite.

Data from:
  MB76
  Table 2
  Line 5385:
Mass (g):12.8
Class:H6
Weathering grade:B
Fayalite (mol%):18
Ferrosilite (mol%):16
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 4(1) (1981), 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° 16'S, 159° 15'E)

Statistics:
     This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names)
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