anorthosite
Definition from Wiktionary, the free dictionary
[edit] English
[edit] Noun
Wikipedia anorthosite (uncountable)
- (geology) A phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar.
- 1863, T. Sterry Hunt, "On the Chemical and Mineralogical Relations of Metamorphic Rocks", The American Journal of Science and Arts, Volume XXXVI, November, 1863, page 224:
- The second, or Labrador series is characterized, as already remarked, by the predominance of great beds of anorthosite, composed chiefly of triclinic feldspars . . .
- 1863, T. Sterry Hunt, "On the Chemical and Mineralogical Relations of Metamorphic Rocks", The American Journal of Science and Arts, Volume XXXVI, November, 1863, page 224:
