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NWA 7138

 

 

NWA 7138

Found Sahara, 2011

Carbonaceous Chondrite

Official CM2

Classified T.Bunch

Specimen is a 0.13 slice, last specimen...

 

Metsoc Database (official entry) :

Petrography: Wide range of chondrule sizes up to 4 mm. Abundant (AOAs), matrix altered to physillocates.

Geochemistry: Olivine Fa1.5-66.7, Fe/Mn=134, Cr2O3 = 0.22-0.42 wt.%; AOA olivine Fa1.5; plagioclase An87; diopside Fs2.1Wo50; metal Ni = 2.2 wt.%.

Classification: Carbonaceous chondrite (CM2)

36000元新台幣



 
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