sodalite

American  

[sohd-l-ahyt] / ˈsoʊd lˌaɪt /

noun

1. a mineral, sodium aluminum silicate, Na 4 Al 3 Si 3 O 1 2 Cl, occurring massive and in crystals, usually blue in color and found in certain alkali-rich igneous rocks.

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sodalite British  

/ ˈsəʊdəˌlaɪt /

noun

1. 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

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Etymology

Origin of sodalite

First recorded in 1800–10; soda + -lite

Example Sentences

Blue sodalite for peace, pink calcite for love and tangerine quartz “for life energy to wish them well into the next life,” said Grayson’s father, Jeff, 59.

From Los Angeles Times

These last consist of an intermixture of nepheline or sodalite and alkali-felspar.

From Project Gutenberg