hornblende schist

noun

, Petrography.

1. a variety of schist containing needles of hornblende that lie in parallel planes.

Word History and Origins

Origin of hornblende schist¹

First recorded in 1815–25

Example Sentences

About Losito we found the trap had given place to hornblende schist, mica schist, and various schorly rocks.

From Project Gutenberg

Hornblende schist is common over large areas in the Lake Superior region.

From Project Gutenberg

He had some very fine teacups of agate and hornblende schist with finely chased silver covers, which I admired very much.

From Project Gutenberg

The term is to some extent synonymous with “amphibolite” and “hornblende-schist.”

From Project Gutenberg

Many outcrops of similar rocks have been traced in the northern zones of the Alps, often with serpentine and hornblende-schist.

From Project Gutenberg