sodalite

Named for the alkaline silicate composition.

• IPA^(key): /ˈsoʊ.dəˌlaɪt/

sodalite (countable and uncountable, plural sodalites)

1. (mineralogy) A mineral of alkaline igneous and plutonic rocks that are low in silica, of the chemical composition of sodium aluminum silicate with chlorine, Na₄Al₃Si₃O₁₂Cl. Pink sodalite is sometimes called hackmanite. Sodalite and lazurite form the sodalite Group of silicate minerals.

• soda

• silica group
• lazurite

• David Barthelmy (1997–2023), “Sodalite”, in Webmineral Mineralogy Database.
• “sodalite”, in Mindat.org‎, Hudson Institute of Mineralogy, 2000–2023.

• altoside, diastole, diolates, elastoid, isolated, solidate