Diaspore
Pronunciation : Di"a*spore
Part of Speech : n.
Etymology : [From Gr. diaspore.] (Min.)
Definition : Defn: A hydrate of alumina, often occurring in white lamellar masses with brilliant pearly luster; -- so named on account of its decrepitating when heated before the blowpipe.
Source : Webster's Unabridged Dictionary, 1913