HORNBLENDE-SCHIST

A slaty variety of horn HOROLOGY. blende, generally including felspar and grains of quartz; it is of a dark green or black colour. Where clay slate is in contact with granite, it sometimes pasBes into hornblende slate. [s. 575] A Dictionary of Science, Literature, and Art — W. T. Brande (1st Ed.) ana Sözlük (A–Z)