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