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Thiel Mountains 82402
Basic information Name: Thiel Mountains 82402
     This is an OFFICIAL meteorite name.
Abbreviation: TIL 82402
Observed fall: No
Year found: 1982
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 476 g
Antarctic Meteorite Newsletter:  AMN 7(1)  (1984)  LL6
Meteoritical Bulletin:  MB 76  (1994)  LL6
NHM Catalogue:  5th Edition  (2000)  LL6
MetBase:  v. 7.1  (2006)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2890 approved meteorites (plus 2 unapproved names) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeup from AMN 7(1):

Sample No.: TIL82402

Location: Thiel Mountains

Field No.: 2735

`eight (gms): 476.0

Meteorite Type: LL6 Chondrite


Physical Description: Roberta Score

Black fusion crust covers all but the edges of this square meteorite. Light gray matrix with dark and light inclusions (chondrules?) make up the interior of TIL82402. Dimensions: 7 x 6 x 6 cm


Petrographic Description: Brian Mason

Chondrules are sparse and poorly developed, tending to merge with the granular groundmass, which consists largely of olivine and pyroxene, with minor amounts of plagioclase and troilite, and a little (ca. 2%) nickel-iron. The section shows a brecciated structure, with medium- to fine-grained clasts. Weathering is minor, being limited to a little brown limonitic staining around metal grains. Microprobe analyses give the following compositions: olivine, Fa29; pyroxene, Fs24; plagioclase, An10. The meteorite is an LL6 chondrite.

Data from:
  Table 2
  Line 5466:
Origin or pseudonym:Moulton Escarpment
Mass (g):476
Weathering grade:A/B
Fayalite (mol%):29
Ferrosilite (mol%):24
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References: Published in Antarctic Meteorite Newsletter 7(1) (1984), JSC, Houston
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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     Catalogue of Meteorites:   (85° 15'S, 91° 0'W)
     Recommended::   (85° 9' 48"S, 94° 37' 17"W)
Note: the NHM and MetBase coordinates are 35.2 km apart

     This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names)
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