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Item for auction is an 9.24g slice of NWA 6954 L3.7 chondrite.  A type sample was analyzed by Tony Irving of University of Washington, and classified as an L3.7 ordinary chondrite with a shock stage of S2 and weathering grade of W1/2.  The meteorite features well-formed, medium-sized chondrules.  Olivine (Fa0.7-39.3; Cr2O3 in ferroan examples is 0.02-0.09 wt.%, mean 0.03 wt.%, s.d. 0.03 wt.%, N =8), orthopyroxene (Fs2.1-24.7Wo0.3-1.3), clinopyroxene (Fs17.5Wo27.1; Fs7.3Wo45.1), sodic plagioclase, altered kamacite, chromite, troilite and taenite. The meteorite comes in a quality labeled display case for protection and years of viewing pleasure..

26500元台幣



 
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