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Thiel Mountains 82405
Basic information Name: Thiel Mountains 82405
     This is an OFFICIAL meteorite name.
Abbreviation: TIL 82405
Observed fall: No
Year found: 1982
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1116 g
Antarctic Meteorite Newsletter:  AMN 7(1)  (1984)  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 6147 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)
Writeup from AMN 7(1):

Sample No.: TIL82405

Location: Thiel Mountains

Field No.: 2715, 2721, 2750

Weight (gms): 1000.7

Meteorite Type: H6 Chondrite


Physical Description: Carol Schwarz

Three perfectly fitting pieces make up TIL82405. The fusion crust contains oxidation halos and is polygonally fractured. The interior is gray with small specs of oxidation. A 1 to 4 mm wide weathering rind was exposed. Dimensions: 15 x 10 x 14 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, plagioclase, and troilite. Brown limonitic staining surrounds the metal grains. Microprobe analyses give the following compositions: olivine, Fa19; pyroxene, Fs17; plagioclase, An13. The meteorite is an H6 chondrite.

Data from:
  Table 2
  Line 5469:
Origin or pseudonym:Davies Escarpment
Mass (g):1115.7
Weathering grade:B
Fayalite (mol%):19
Ferrosilite (mol%):17
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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° 15'S, 91° 0'W)

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