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Reckling Peak A80207
Basic information Name: Reckling Peak A80207
     This is an OFFICIAL meteorite name.
Abbreviation: RKPA80207
This meteorite may also be called Reckling Peak 80207 (RKP 80207) in publications.

Observed fall: No
Year found: 1980
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 17.7 g
Antarctic Meteorite Newsletter:  AMN 5(1)  (1982)  L3
Meteoritical Bulletin:  MB 76  (1994)  L3.2/3.7
NHM Catalogue:  5th Edition  (2000)  L3.2/3.7
MetBase:  v. 7.1  (2006)  H3.2-3.7
Antarctic Meteorite Newsletter:  AMN 33(1)  (2010)  H3.2-3.7
Recommended:  H3.2-3.7    [explanation]

This is the only approved meteorite classified as H3.2-3.7.
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Writeup from AMN 5(1):

Sample No.: RKPA80207

Location: Reckling Peak

Field No.: 1087

Weight (gms): 17.7

Meteorite Type: L3 Chondrite


Physical Description: Roberta Score

Dull black fusion crust covers only one surface of this otherwise totally iridescently weathered specimen. Dimensions: 3 x 2.5 x 1.5 cm


Petrographic Description: Brian Mason

Chondrules are abundant, ranging from 0.3 to 1.5 mm in diameter; a wide variety is present, the commonest being granular olivine and olivine-pyroxene, and fine-grained pyroxene. The granular chondrules have intergranular glass, sometimes pale brown and transparent, but commonly turbid and partly devitrified. Irregular granular clasts and chondrule fragments are also present. Most of the pyroxene is polysynthetically twinned. The matrix consists of fine-grained olivine and pyroxene, with minor subequal amounts of nickel-iron and troilite. Veinlets of limonite and brown limonitic staining pervade the section. Microprobe analyses show olivine ranging in composition from Fa15 to Fa29, with a mean of Fa20; pyroxene ranging from Fs6 to Fs28, with a mean of Fs13. This range of composition, together with the presence of glass, indicates type 3, and the low content of nickel-iron suggests L group; the meteorite is therefore tentatively classified as an L3 chondrite.

Data from:
  Table 2
  Line 5395:
Mass (g):17.7
Weathering grade:C
Fayalite (mol%):15-29
Ferrosilite (mol%):6-28
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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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     Catalogue of Meteorites:   (76° 16'S, 159° 15'E)
     Recommended::   (76° 12' 54"S, 158° 25' 16"E)
Note: the NHM and MetBase coordinates are 22.8 km apart

     This is 1 of 43352 approved meteorites from Antarctica (plus 3802 unapproved names)
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