lazulite

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İngilizce - İngilizce
A semi-precious gemstone that is a basic phosphate of magnesium, iron and aluminium
{n} a species of argillaceous earth or zeolite of a blue color
{i} azure-blue mineral
A mineral of a light indigo-blue color, occurring in small masses, or in monoclinic crystals; blue spar
It is a hydrous phosphate of alumina and magnesia
lazulite