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Webster 1913 Edition
Petalite
Pet′al-ite
,Noun.
[Cf. F.
pétalite
.] (Min.)
A rare mineral, occurring crystallized and in cleavable masses, usually white, or nearly so, in color. It is a silicate of aluminum and lithium.
Webster 1828 Edition
Petalite
PET'ALITE
,Noun.