itacolumite

[ it-uh-kol-yuh-mahyt ]

noun

1. a sandstone consisting of interlocking quartz grains and mica scales, found principally in Brazil and North Carolina, and noted for its flexibility in thin slabs.

itacolumite

/ ˌɪtəˈkɒljʊˌmaɪt /

noun

1. a fine-grained micaceous sandstone that occurs in thin flexible slabs

Word History and Origins

Origin of itacolumite¹

1860–65; named after Itacolumi, mountain in Brazil; -ite ¹

Word History and Origins

Origin of itacolumite¹

C19: named after Itacolumi mountain in Brazil where it is found

Example Sentences

Some authorities hold that the diamond has been formed in certain quartz veins which traverse the itacolumite.

From Project Gutenberg

Itacolumite is yellow or pale-brown, and splits readily into thin flat slabs.

From Project Gutenberg