A rare mineral, occurring in very delicate filaments, short, flexible and elastic. Their color is olive green, or brownish yellow, and their luster a little silky. Jameson places byssolite under actinolite; Hauy arranges it under amianthoid.
BYS'SUS, n. [L. byssus; Gr. fine linen, or cotton.]
The asbestus, composed of parallel fibers,is by some called by this name.