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Navoi
Basic information Name: Navoi
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2016
Country: Uzbekistan
Mass:help 2.75 kg
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  H6
Recommended:  H6    [explanation]

This is 1 of 6320 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 2 Sep 2016
Writeuphelp
Writeup from MB 105:

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 Fa18.9±0.2 (n=12), Pyroxene Fs16.6±0.0Wo1.4±0.4, Fe/Mn = 22.3±0.6 (n=5), and feldspar plagioclase An12.8±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.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Navoi
Date:2016 Feb 27
Latitude:40°2.75700'N
Longitude:65°20.24580'E
Mass (g):2747.4
Pieces:1
Class:H6
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):18.9±0.2 (n=12)
Ferrosilite (mol%):16.63±0.02 (n=5)
Wollastonite (mol%):1.4±0.4 (n=5)
Classifier:A. Munro, UWO
Type spec mass (g):30.4
Type spec location:UWO
Main mass:Finder
Finder:Anonymous
Comments:Submitted by A. Bouvier
Institutions
   and collections
UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Photos:
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Photos from the Encyclopedia of Meteorites:
Sky Hunter   
Geography:

Uzbekistan
Coordinates:
     Recommended::   (40° 2' 45"N, 65° 20' 15"E)

Statistics:
     This is 1 of 2 approved meteorites from Navoi, Uzbekistan
     This is 1 of 3 approved meteorites from Uzbekistan
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