Navoi        40°2.75700’N, 65°20.24580’E

Navoi, Uzbekistan

Find: 2016 Feb 27

Classification: Ordinary chondrite (H6)

History: The stone was found on a small plateau, 5 km south of the city of Navoi.

Physical characteristics: The single stone is angular and has a black fusion crust. The fusion crust is observed on a relatively flat surface on the top of the stone. The surface of the meteorite without fusion crust is weathered and has a dull-tan color. The fresh cut surface has a dark color with apparent fresh metal. The stone was broken off into two pieces of 2632.7 g and 114.7 g when lifted from the ground.

Petrography: (A. Munro, UWO) This meteorite is composed of olivine ~50%, pyroxene ~33%, metal ~15%, plagioclase ~2%, and accessory troilite and apatite. Weathering products can be found as as iron oxides locally and within veins throughout the sample. The veins are typically 10-100 μm in width and lead to the exterior surface of the stone. Unoxidized iron-nickel metal is found disseminated in circular ~100 μm grains. The largest apatite grain observed is 50 μm across. The matrix supporting a few distinguishable chondrules is composed of broken up or relict chondrules. The chondrule compositions vary with both olivine and pyroxene-bearing chondrules. Types IA and IB chondrules were identified based on the amount of metal and olivine.

Geochemistry: Mineral compositions were obtained using WDS EMPA (in mol%): Olivine Fa_18.9±0.2 (n=12), Pyroxene Fs_16.6±0.0Wo_1.4±0.4, Fe/Mn = 22.3±0.6 (n=5), and feldspar plagioclase An_12.8±0.2 (n=9).

Classification: Ordinary chondrite H6

Specimens: 30.4 g at UWO including a polished thin section and probe mount. Remaining mass with owner.