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

Itacolumite, it-a-kol′ūm-īt, n. a schistose quartzite, containing scales of mica, talc, and chlorite, often having a certain flexibility.

From Project Gutenberg

Along beside, and traversing through and through these golden rocks and sands, occur immense bands of itacolumite, known, from its flexibility, as the elastic sandstone.

From Project Gutenberg

The diamond, which consists of pure carbon, is generally met with in alluvial deposits, but sometimes, also, in a curious flexible sandstone, called itacolumite.

From Project Gutenberg

At Sāo Jo�o da Chapada, in Minas Geraes, diamonds occur in a clay interstratified with the itacolumite, and are accompanied by sharp crystals of rutile and haematite in the neighbourhood of decomposed quartz veins which intersect the itacolumite.

From Project Gutenberg

The mountains consist here of an ancient laminated micaceous quartzite, which is in parts a flexible sandstone known as itacolumite, and in parts a conglomerate; it is interbedded with clay-slate, mica-schist, hornblende-schist and haematite-schist, and intersected by veins of quartz.

From Project Gutenberg