Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A glassy phase found in some meteorites and impact craters, typically similar in composition to plagioclase feldspar.

from The Century Dictionary and Cyclopedia

  • n. In mineralogy, an isotropic mineral found in the Shergotty meteorite. It has the composition of labradorite, and the suggestion has been made that it may be a fused feldspar.

Etymologies

M H N Story-Maskelyne, British geologist, and -ite. (Wiktionary)

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