Definition of sodalite in English:
A blue mineral consisting mainly of an aluminosilicate and chloride of sodium, occurring chiefly in alkaline igneous rocks.
- Associated minerals include various pyroxenes and zeolites in addition to the more familiar lazurite, sodalite, pyrite, and carbonates.
- Lazurite, the deep blue variety of sodalite with sulphur replacing some of the chlorine, is dominant in lapis-lazuli.
- The intermediate zone consists of massive lilac-gray sodalite with inclusions of nepheline, dark green aegirine, and pale green fluorapatite.
Definition of sodalite in:
- British & World English dictionary
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