Anorthosite meaning

ăn-ôrthə-sīt
An igneous rock consisting almost entirely of plagioclase feldspar, especially the labradorite variety.
noun
0
0
A type of gabbro, usually light-colored, made up almost entirely of plagioclase feldspars, esp. labradorite.
noun
0
0
An igneous rock consisting almost entirely of plagioclase feldspar, especially the labradorite variety. Anorthosites have been identified among rock samples collected from the Moon.
0
0
(geology) A phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar.
noun
0
0
Advertisement

Origin of anorthosite

  • French anorthose a kind of feldspar (Greek an- not a–1) (Greek orthos straight) –ite

    From American Heritage Dictionary of the English Language, 5th Edition