Name: Grosvenor Mountains 95577 This is an OFFICIAL meteorite name. Abbreviation: GRO 95577 Observed fall: No Year found: 1995 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 106.2 g
Macroscopic Description: Cecilia E. Satterwhite
The exterior of this carbonaceous chondrite is covered with black
fusion crust and is frothy in some areas. Flow lines are present
on some surfaces. Areas devoid of fusion crust are brown, pitted
and weathered. Fractures are numerous and penetrate the surface.
The interior of the sample reveals a grayish-black matrix, weathered
brown in areas. Minor white evaporite deposits are visible and
small inclusions/chondrules are present but weathered.
Thin Section (,3) Description: Brian Mason
The section shows numerous chondrules (up to 1.8 mm across), irregular
aggregates, and small mineral grains in a dark brown to black
matrix; accessory nickel-iron and troilite are present, mainly
rimming chondrules. The chondrules, aggregates, and mineral grains
consist almost entirely of an isotropic to weakly birefringent
serpentine; a little calcite is present. The meteorite is a C2
chondrite.