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Definition of Anorthite
1. Noun. Rare plagioclastic feldspar occurring in many igneous rocks.
Definition of Anorthite
1. n. A mineral of the feldspar family, commonly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See Feldspar.
Definition of Anorthite
1. Noun. (minerology) A plagioclase feldspar, the final member of the Albite-Anorthite solid solution series. Anorthite is very rare on Earth, but abundant in moon rocks. This is because Anorthite weathers rapidly to clay minerals under atmospheric conditions. Good crystals have been found in lava-digested limestone blocks erupted from Mount Vesuvius. ¹
¹ Source: wiktionary.com
Definition of Anorthite
1. [n -S]
Lexicographical Neighbors of Anorthite
Literary usage of Anorthite
Below you will find example usage of this term as found in modern and/or classical literature:
1. Elements of Chemical and Physical Geology by Gustav Bischof (1855)
"I and II. anorthite from Somma III. anorthite from ... and the same as m
anorthite / ,, ,,..° r < Brush. ..."
2. Lectures on Mineralogy: Delivered at the School of Mines, Columbia College by Thomas Egleston (1872)
"The minerals generally known as the feldspars are anorthite, Labradorite, Oligoclase,
... Oa fi B 3 3 3 3 3 Si anorthite, Labradorite, Oligoclase, Albite, ..."
3. The Edinburgh Philosophical Journal by Royal Society of Edinburgh (1824)
"29- Rose on Felspar, Albite, Labradorite, and anorthite.—M. Gustavus Rose of
Berlin, has published a highly interesting and elaborate paper, in the Annalen ..."
4. Mineralogy Simplified: Easy Methods of Identifying Minerals, Including Ores by Henry Erni, Amos Peaslee Brown (1908)
"Cleavages inclined at angles varying from 86° 24' (Albite) to 85° 50' (anorthite)
distinctly not at right angles. Cleavage faces generally striated with ..."
5. The Annals of Philosophy by Richard Phillips, E W Brayley (1824)
"... Albite, Labrador, and anorthite. By M. Gustavus Rose.* j, SOME differences I
had found in the angles of crystals described hitherto as felspar, ..."
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