What's the difference between hiddenite and spodumene?

Hiddenite

Definition:

(n.) An emerald-green variety of spodumene found in North Carolina; lithia emerald, -- used as a gem.

Example Sentences:

Definition:

(n.) 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.

Example Sentences:

(1) Degradation of spodumene and bed rocks was found to occur in moist regions containing cracks; it was accompanied with a decrease in pH.
(2) Furthermore, plate-like segments of each of CP, apatite (AP), mica-beta-spodumene (MIS) and mica (MIC) groups were subjected to experiment at various indentation loads at a fixed loading time to study the effects of indentation load on KIC in four kinds of Castable Ceramics.
(3) A wide spectrum of heterotrophic and autotrophic microorganisms was detected in the zones of decomposition of spodumene and bed rocks, pegmatites and shales, in the spodumene deposit.
(4) A possible role of microorganisms in decomposition of spodumene as well as removal of elements is discussed.