Min. Also koupholite. [Named 1797 from Gr. κοῦφος tender + -LITE.] A variety of PREHNITE occurring in thin fragile laminæ.
1805. R. Jameson, Min., II. 561. Foliated Prehnite … Koupholite.
1868. Dana, Min., 411. s.v. Prehnite, Coupholite is in cavernous masses, made of small, thin, fragile laminæ or scales.
