单词 | pallasite |
释义 | pallasite [`pal·ǝ´sīt] GEOLOGY 1. A stony-iron meteorite composed essentially of large single glassy crystals of olivine embedded in a network of nickel-iron. 2. An ultramafic rock, of either meteoric or terrestrial origin, which contains more than 60% iron in the former, or more iron oxides than silica in the latter. |
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