What does "glaucophane" mean?

A blue amphibole mineral, a mixed aluminate of sodium, magnesium and aluminium that exhibits pleochroism, with the chemical formula Na₂(Mg,Fe²⁺)₃Al₂Si₈O₂₂(OH)₂.

Glaucophane

noun

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Definitions

Noun

1
A blue amphibole mineral, a mixed aluminate of sodium, magnesium and aluminium that exhibits pleochroism, with the chemical formula Na₂(Mg,Fe²⁺)₃Al₂Si₈O₂₂(OH)₂. countable, uncountable

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.