Name: Grosvenor Mountains 17026 This is an OFFICIAL meteorite name. Abbreviation: GRO 17026 Observed fall: No Year found: 2017 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 92.4 g
70% - 90% of the exteriors are covered with black/brown rough fusion crust with some pitting, larger fractures and numerous small iridescent weathering spots. Areas without fusion crust show abundant inclusions/chondrules in grey matrix with some red-brown varnish also present. Interiors are dark grey to black matrix with abundant inclusions/chondrules, some large (up to 4 mm) that range in color from dark brown to light grey. Oxidation is scattered throughout and there are areas of rust.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy
The sections exhibit numerous well-defined chondrules (up to 1.5 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is abundant. The meteorites are moderately weathered. Silicates are unequilibrated; olivines range from Fa1-36 and pyroxenes from Fs3-17. The meteorites are L3 chondrites (estimated subtype 3.4).
Antarctic Meteorite Images for Sample GRO 17026
Lab Photo(s) :
Antarctic Meteorite Images for Sample GRO 17026
Thin Section Photo(s) :
Data from: MB109 Table 0 Line 0:
Date:
2017
Latitude:
-85.9227
Longitude:
174.282
Mass (g):
92.43
Pieces:
1
Class:
L3.4
Weathering grade:
B
Fayalite (mol%):
6-26
Ferrosilite (mol%):
3-17
Magnetic suscept.:
3.78
Classifier:
SI
Type spec mass (g):
92.43
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.):