sapphirine

(safər in, -ə rīn′)

adjective

of or like sapphire

noun

a rare, blue or green, very hard, monoclinic mineral, (Mg,Al)(Al,Si)O, found in some metamorphic rocks

See sapphirine in American Heritage Dictionary 4

adjective
Of or resembling sapphire.
noun
A rare light blue or green aluminum-magnesium silicate mineral.
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