amphibolite

American  

[am-fib-uh-lahyt] / æmˈfɪb əˌlaɪt /

noun

Petrography.

1. a metamorphic rock composed mainly of amphibole and plagioclase.

---

amphibolite British  

/ æmˈfɪbəˌlaɪt /

noun

1. a metamorphic rock consisting mainly of amphibole and plagioclase

---

amphibolite Scientific  

/ ăm-fĭb′ə-līt′ /

1. A metamorphic rock composed chiefly of amphibole and plagioclase and having little or no quartz.

---

Other Word Forms

• amphibolitic adjective

Etymology

Origin of amphibolite

First recorded in 1825–35; amphibole + -ite ¹

Example Sentences

The metamorphic rock, amphibolite, is primarily composed of amphibole minerals.

From Textbooks • Jan. 1, 2017

The lowest pressure conditions produce hornfels facies, while higher pressure creates greenschist, amphibolite, or granulite facies.

From Textbooks • Jan. 1, 2017

Similarly, a gneiss that originated as basalt and is dominated by amphibole, is an amphibole gneiss or, more accurately, an amphibolite.

From Textbooks • Jan. 1, 2015

They will find a Something there, In a cavern where no sound is, In a room of milky marble Walled with black amphibolite Over-scored with faded words And stained with time!

From Open Water by Stringer, Arthur

The best specimens are afforded by the beautifully developed transparent glassy crystals, found with albite, prehnite and quartz, in a zone of amphibolite and chlorite-schists at Le Bourg d'Oisans in Dauphin�.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" by Various