Tremolite. 465 Occurs maflive, and in capillary and acieular cryf- tals. Internally its luftre is gliftening, fometimes border. Mg on glimmering, fometimes palling to Ihining, and 5 s pearly. Frafture moll generally delicately, flraight, and fcopiformly diverging fibrous. Fragments fplintery and wedge lhaped. Occurs in diftin£t concretions, which are wedge- ftaped prifmatic, palling into granular, and are pro- Mifcuous. Only tranflucent on the edges, but approaches to tr anflucent, when it borders on the following fub- Jpecies. Very foft. Ealily frangible. Mild. Not particularly heavy. SECOND
