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Yamato 981668 | |||||||||||||||||||||
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Basic information | Name: Yamato 981668 This is an OFFICIAL meteorite name. Abbreviation: Y-981668 Observed fall: No Year found: 1998 Country: Antarctica [Collected by National Institute of Polar Research, Japan] Mass: ![]() | ||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||
Comments: | Approved 26 May 2011 | ||||||||||||||||||||
Writeup![]() |
Writeup from MN J20:
Y981668
Eucrite Pairing: Y981672, 981673, 981724, 981734, 981735, 981737, 981738, 981739, 981740, 981741, 981742, 981743 The coarse-grained areas of these sections are texturally similar to Y980433. The sections of Y981737 (,41-1) and 981741(,31-1) have areas of dark impact melt matrix. Crystalline area of these meteorites shows a coarse-grained and fine-grained portion with broad boundaries. Pyroxene is inverted pigeonite in which orthopyroxene has thick lamellae and blebs of augite. Minor oxide minerals occur sparsely. These meteorites are moderately shocked. Compositions of Low-Ca pyroxene are Wo1.6-2.0Fs47-48 and Wo42.3-44.6Fs19.2-20.8 (wt. FeO/MnO = ~33), and those of plagioclase are An87-88. | ||||||||||||||||||||
Data from: MB99 Table 0 Line 0: |
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Institutions and collections |
NIPR: Antarctic Meteorite Research Center, National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Website (institutional address; updated 9 Dec 2013) |
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Catalogs: |
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References: | Published in Meteorite newsletter : Japanese collection of Antarctic meteorites /Meteorite newsletter : Japanese collection of Antarctic meteorites ,20,1-19 (2011-03) Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography:![]() |
Statistics: This is 1 of 43700 approved meteorites from Antarctica (plus 3802 unapproved names) |