林東小行星表土隕石4.1克

林東小行星表土隕石4.1克
大角礫鑲崁在樣本的正中央
国际命名: Lindong
日期:2012年10月發現於內蒙古赤峰
分类: LL5-6
Geochemistry: Mineral compositions and geochemistry: (S. Hu and Y. Lin, IGGCAS) The matrix and lithic breccias have homogeneous chemical compositions. Olivine: Fa_28.1±0.3, orthopyroxene: Fs_21.3±0.4Wo_1.8±0.6, clinopyroxene:Fs_10.7±1.2Wo_40.2±3.4, plagioclase: An_10.1±0.7Ab_85.8±0.9, Co content in kamacite: 2.3 wt%. The three plagioclase fragments share similar chemical compositions (An_8.7±0.2Ab_87.0±0.4) with those in the matrix.
Classification: (S. Hu and Y. Lin, IGGCAS) LL5-6 breccia, but it is possible that clasts of petrologic type lower than 5 are present.
 

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