sodalite

[ sohd-l-ahyt ]
/ ˈsoʊd lˌaɪt /

noun

a mineral, sodium aluminum silicate, Na4Al3Si3O12Cl, occurring massive and in crystals, usually blue in color and found in certain alkali-rich igneous rocks.

Origin of sodalite

First recorded in 1800–10; soda + -lite

Example sentences from the Web for sodalite

British Dictionary definitions for sodalite

sodalite
/ (ˈsəʊdəˌlaɪt) /

noun

a blue, grey, yellow, or colourless mineral consisting of sodium aluminium silicate and sodium chloride in cubic crystalline form. It occurs in basic igneous rocks. Formula: Na 4 Al 3 Si 3 O 12 Cl

Word Origin for sodalite

C19: from soda + -lite