spodumene
nounA greenish to pinkish or lilac mineral, LiAlSi2O6, that is used as a source of lithium and in transparent varieties as a gemstone.
nounA silicate of aluminium and lithium, occurring usually in flattened prismatic crystals, near pyroxene in form, also in cleavable masses.
nounA mineral of a white to yellowish, purplish, or emerald-green color, occurring in prismatic crystals, often of great size. It is a silicate of alumina and lithia. See
A
a pyroxene mineral consisting of lithium aluminum silicate; a source of lithium