achondrite

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achondrite

Wikipedia

From a- +‎ chondrite.

achondrite (plural achondrites)

(astronomy, geology) Any stony meteorite that contains no chondrules.
- 1993 April 27, “SCIENCE WATCH; New Light Is Shed On Moon's Brightness”, in The New York Times‎^[1]:
  The study confirms a 20-year-old theory that balsaltic^[sic] achondrite meteorites are projected off the surface of the asteroid 4 Vesta, the second largest asteroid in the solar system, which lies between Jupiter and Mars.
- 2011, Dieter Rehder, Chemistry in Space:
  The Vestan, Lunar, and Martian meteorites are achondrites.

stony meteorite that contains no chondrules