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Northwest Africa 10104
Basic information Name: Northwest Africa 10104
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10104
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 182.6 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CK6
Recommended:  CK6    [explanation]

This is 1 of 77 approved meteorites classified as CK6.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 7 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10104 (NWA 10104)

(Northwest Africa)

Purchased: 2014

Classification: Carbonaceous chondrite (CK6)

History: A 182.6 g, roughly cuboid meteorite was acquired by Michael Farmer at the 2014 Tucson Gem and Mineral Show.

Physical characteristics: Stone covered with wind ablated fusion crust. Interior is hard, black and featureless.

Petrography: Coarse-grained and recrystallized. Thin section shows few recognizable chondrules, one to 3 mm. Mineralogy dominated by olivine with minor pyroxene and plagioclase. Thin section largely opaque in transmitted light, this opacity is caused by the high abundance of micrometer-sized Fe-S and Cr-rich magnetite grains. No sign of weathering.

Geochemistry: (L. Garvie, ASU) Olivine Fa33.6±0.6, FeO/MnO=122.1±10.3, NiO=0.4±0.1 wt%, n=10. High-Ca pyroxene Fs7.7±0.3Wo47.1±1.4, n=3. Feldspar An40.5Or2.3 and An56.4Or1.1.

Classification: Carbonaceous chondrite CK6. Low weathering.

Specimens: 32.2 g at ASU.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2014
Mass (g):182.6
Pieces:1
Class:CK6
Shock stage:low
Weathering grade:low
Fayalite (mol%):33.6
Classifier:L. Garvie, ASU
Type spec mass (g):32.2
Type spec location:ASU
Main mass:MFarmer
Finder:Anonymous
Comments:Submitted by L. Garvie
Institutions
   and collections		 ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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