n. A greenish, yellowish or pinkish mineral, a lithium pyroxene (LiAl(SiO3)2) that is an ore of lithium, and a gemstone
the GNU version of the Collaborative International Dictionary of English
n. A 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 hiddenite.
The Century Dictionary and Cyclopedia
n. A silicate of aluminium and lithium, occurring usually in flattened prismatic crystals, near pyroxene in form, also in cleavable masses.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a pyroxene mineral consisting of lithium aluminum silicate; a source of lithium
Word Usage
"These sources are less expensive to mine than from rock such as spodumene, petalite, and other lithium-bearing minerals."