1.35g NWA 6912 Meteorite (EUC)

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Availability: Out Of Stock
Price: $54.00

Only available from the Natural History Laboratory, this is an absolutely beautiful Eucrite.  With only a single 27.5 gram stone found and 5.7 grams going towards analysis for classification, that leaves less than 20 grams available after cut loss!  Below are the analysis results from Dr. Anthony Irving of the University of Washington's Earth and Space Science Department.

Classification: HED achondrite (Eucrite, polymict) Petrography: Fragmental breccia composed of clasts of fine-grained ophitic, cumulate and granulitic eucritesand related debris plus ~5 vol.% of diogenitic orthopyroxene containing inclusions of chromite. Eucritic minerals include exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite and troilite.

Geochemistry: Diogenitic orthopyroxene Fs24.0Wo2.4 FeO/MnO=27, host orthopyroxene Fs59.3-59.5Wo2.4, FeO/MnO=30, clinopyroxene exsolution lamellae Fs24.0-24.2Wo45.1-41.8, FeO/MnO=29.

TKW (g): 27.5 
Class: Eucrite-pmict
Shock stage: low
Weathering grade: low
Ferrosilite (mol%): 24.0; 59.3-59.5
Wollastonite (mol%): 2.4; 2.4
Classifier: A. Irving and S. Kuehner

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