![]() |
||
|
Northwest Africa 10100 | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 10100 This is an OFFICIAL meteorite name. Abbreviation: NWA 10100 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 566 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||||
Comments: | Approved 14 May 2015 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 104:
Northwest Africa 10100 (NWA 10100) (Northwest Africa) Purchased: 2013 July 10 Classification: Carbonaceous chondrite (CO3) Petrography: (A.E. Rubin, UCLA) Matrix abundance is ~45%, average chondrule diameter is ~200 μm. Most chondrules are type I porphyritic, consistent with a carbonaceous chondrite. Some small amoeboid olivine inclusions are present (~300 μm in diameter). Heterogeneity of olivine and abundant polysynthetically twinned low-Ca pyroxene are indicative of an unequilibrated chondrite. Chondrules are sharply defined. Geochemistry: Mineral compositions and geochemistry: (A.E. Rubin, UCLA) Cr2O3 of ferroan olivine: 0.08±0.07 (n=11). | ||||||||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||||
Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) |
||||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
| ||||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) |