petalite

noun pet·al·ite \-ˌīt\

Definition of petalite

plural

-s

  1. :  a usually white mineral LiAl(Si2O5)2 consisting of a lithium aluminum silicate occurring in foliated cleavable masses or in monoclinic crystals (hardness 6–6.5, specific gravity 2.39–2.46)

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Origin and Etymology of petalite

German petalit, from Greek petalon leaf + German -it -ite


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