glaucophane

== English == === Noun === glaucophane (countable and uncountable, plural glaucophanes) (mineralogy) 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. ==== Derived terms ==== ==== Translations ==== === Further reading === David Barthelmy (1997–2026), “Glaucophane”, in Webmineral Mineralogy Database. “glaucophane”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026. == French == === Noun === glaucophane m or f (plural glaucophanes) (mineralogy) glaucophane === Further reading === “glaucophane”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012