Webster's 1828 Dictionary
SPODUMENE
n.[Gr. , to reduce to ashes. ] A mineral, called by Hauy triphane. It occurs in laminated masses, easily divisible into prisms with rhomboidal bases; the lateral faces smooth, shining and pearly; the cross fracture uneven and splintery. Before the blowpipe it exfoliates into little yellowish or grayish scales; whence its name.
Webster's 1913 Dictionary
SPODUMENE
Spod "u *mene, n. Etym: [Gr. spodo `s ashes; cf. F. spodumène.] (Min. )
Defn: A mineral of a white to yellowish, purplish, or emerald-green color, occuring in prismatic crystals, often of great size. It is a silicate of aluminia and lithia. See Hiddenite.
New American Oxford Dictionary
spodumene
spod u mene |ˈspäjo͞oˌmēn ˈspɑʤumin | ▶noun a translucent, typically grayish-white aluminosilicate mineral that is an important source of lithium. ORIGIN early 19th cent.: from French spodumène, from Greek spodoumenos ‘burning to ashes, ’ present participle of spodousthai, from spodos ‘ashes. ’
Oxford Dictionary
spodumene
spodumene |ˈspɒdjʊmiːn | ▶noun [ mass noun ] a translucent, typically greyish-white aluminosilicate mineral which is an important source of lithium. ORIGIN early 19th cent.: from French spodumène, from Greek spodoumenos ‘burning to ashes ’, present participle of spodousthai, from spodos ‘ashes ’.
The Wordsmith Dictionary