harmotome

[Gr. harmos = a joint, and tomos cutting; temno to cut.] Min.: A monoclinic, sub transparent or translucent brittle mineral, occurring in twin crystals; colors white, gray, yellow, red, or brown; streak, white; hardne , 45; specific gravity, 2-44-2-45. Composition: Silica, 46-10-48'49; alumina, 15-24-17-65; baryta, 19-12-21·60; water, 13-15-24. It is found in amygdaloid phonolite, trachyte, in gnei , and in metallic veins. Morvenite is a variety of it. harn, s. & a. [A. S. heordan .] [HARDS.] A. As subst .: Very coarse linen. "Her cutty sark o' Paisley harn." Burns: Tam Shanter. B. As adj .: Made of flax hards; coarse.