Min. [f. Gr. εὐφυλλ-ος well-leafed (f. εὐ- EU- + φύλλον leaf) + -ITE: see quot. 1849.] A hydrous silicate, micaceous in structure, and of a white color.
1849. Amer. Jrnl. Sc., Ser. II. VIII. 383. The beautiful foliae [sic] of this pearly white mineral have suggested the name Euphyllite.
1873. Proc. Amer. Phil. Soc., XIII. 391. Euphyllite accompanied by tourmaline and zirsite is a very rare associate of corundum.
1882. Watts, Dict. Chem., II. 608.
