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(ks"tlt), n.[Gr. chiasto°s marked with a + -lite. See Chiasm. So called from the resemblance of the cross cuts of its crystals to the Greek letter .] (Min.) A variety of andalusite; -- called also macle. The tessellated appearance of a cross section is due to the symmetrical arrangement of impurities in the crystal. スポンサード リンク
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