Name: Grosvenor Mountains 17151 This is an OFFICIAL meteorite name. Abbreviation: GRO 17151 Observed fall: No Year found: 2017 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 59.4 g
60% of exterior is covered with dark brown-black fusion crust that is pitted with some fracturing and a few iridescent weathering halos. Exposed surfaces are grey matrix with small black and metal inclusions throughout as well as some lighter brown round inclusions visible and heavily rusted to a dark orange brown. Fresh interior is light grey matrix with small black and metal inclusions throughout and is heavily rusted to a dark brown with some patches of orange-brown.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy
The meteorite is an unexceptional L6 chondrite (Fa24, Fs21) with an exceptional network of shock veins at one end of the section. The shock veins reach up to several millimeters in width with veins and contain networks of metal-sulfide intergrowths including larger composite particles with dendritic iron-nickel metal in a matrix of iron sulfide. Most exceptional is the occurrence of grains exceeding 200 microns in diameter that have a distinct greenish-blue color in plane polarized light. Their occurrence and appearance are suggestive of wadsleyite (a high-pressure polymorph of olivine) and their composition of Fa24 is consistent with this interpretation.
Antarctic Meteorite Images for Sample GRO 17151
Lab Photo(s) :
Data from: MB109 Table 0 Line 0:
Date:
2017
Latitude:
-85.817
Longitude:
173.833
Mass (g):
59.36
Pieces:
1
Class:
L6
Weathering grade:
B/C
Fayalite (mol%):
25
Ferrosilite (mol%):
21
Magnetic suscept.:
4.64
Classifier:
SI
Type spec mass (g):
59.36
Type spec location:
JSC
Main mass:
JSC
Finder:
ANSMET
Comments:
Submitted by AMN
Institutions and collections
JSC: Mailcode XI, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 28 Jul 2022) SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):
59.4 g
