Astronomy. Any of a group of achondritic meteorites principally composed of anorthite and pigeonite.
单词 | θ1212 |
释义 | the world > the universe > constellation > comet or meteor > meteor > [noun] > meteorite > achondrite > types of (4) eucrite1881 Astronomy. Any of a group of achondritic meteorites principally composed of anorthite and pigeonite. howardite1881 Astronomy. Any of a group of achondritic meteorites principally composed of hypersthene and anorthite. nakhlite1916 Any of a class of achondritic stony meteorites which originate from Mars and are rich in augite. ureilite1916 Any of a group of calcium-poor achondrite meteorites that consist mainly of olivine and pigeonite. |
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