— perthitic /peuhr thit"ik/ , adj. — perthitically , adv.
/perr"thuyt/ , n. Mineral
a variety of feldspar containing irregular bands of albite in microcline.
[ 1832; named after Perth, Ontario, Canada; see -ITE 1 ]
— perthitic /peuhr thit"ik/ , adj. — perthitically , adv.
/perr"thuyt/ , n. Mineral
a variety of feldspar containing irregular bands of albite in microcline.
[ 1832; named after Perth, Ontario, Canada; see -ITE 1 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012