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Northwest Africa 10104 | |||||||||||||||||||||||||||||
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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: ![]() | ||||||||||||||||||||||||||||
Classification history: |
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 | ||||||||||||||||||||||||||||
Writeup![]() |
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: |
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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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |