[meteorite-list] Sierra Gorda 010 R4-an TS (last of three)

[Timur Astronom via Meteorite-list]

One day ends the last of the three auctions, in which the transparent-polished 
thin section of the unique “green” anomalous rumurutite Sierra Gorda 010 is 
presented:  
https://www.ebay.com/itm/123774567234?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
  
It is in the transparent-polished thin sections that you can see the beauty of 
this amazing meteorite, which may be taken as the basis for the new chondrite 
grouplet.

Meteorite hunter and manufacturer of transparent polished thin sections of 
them, Timur Kryachko
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[meteorite-list] Reidite implies asteroid impact created Libyan Desert Glass

[Paul via Meteorite-list]

Mystery of Libyan desert glass solved at last. Famous
since the time of King Tut the origin of the scattered
glass fragments has long puzzled researchers. Aaron
Cavosie from Australia???s Curtin University explains.
https://cosmosmagazine.com/archaeology/mystery-of-libyan-desert-glass-solved-at-last

Planetary scientists unravel mystery of Egyptian
desert glass by Curtin University, PyhsOrg
https://phys.org/news/2019-05-planetary-scientists-unravel-mystery-egyptian.html
https://www.sciencealert.com/exotic-glass-in-egypt-was-created-by-a-meteorite-impact-millions-of-years-ago

100-Year Mystery Solved, Yellow Glass In Egyptian
Desert Caused By Meteorite Strike, Athena Chan, Tech Times
https://www.techtimes.com/articles/243406/20190518/100-year-mystery-solved-yellow-glass-in-egyptian-desert-caused-by-meteorite-strike.htm

The paper is:

Cavosie, A.J. and Koeberl, C., 2019. Overestimation of
threat from 100 Mt???class airbursts? High-pressure
evidence from zircon in Libyan Desert Glass. Geology.
DOI: 10.1130/G45974.1
https://pubs.geoscienceworld.org/gsa/geology/article/570318/Overestimation-of-threat-from-100-Mtclass

Another open access paper is:

Koeberl, C. and Ferri??re, L., 2019. Libyan Desert Glass area
in western Egypt: Shocked quartz in bedrock points to a
possible deeply eroded impact structure in the region.
Meteoritics & Planetary Science. open access
https://onlinelibrary.wiley.com/doi/abs/10./maps.13250

yours,

Paul H.

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[meteorite-list] Meteorite Picture of the Day

[Paul Swartz via Meteorite-list]

Today's Meteorite Picture of the Day: Sao Joao Nepomuceno

Contributed by: Anne Black

http://www.tucsonmeteorites.com/mpodmain.asp?DD=05/29/2019
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